Everyone is healthy. I will boast about another homemade product called a pneumatic dart thrower. 
Pump type. 
And here is the ammunition: a homemade dart made from a nail, 9 cm long and with a total length of 12 cm with feathers. 
Compared to a matchbox. 
Well, a little theory, in short, air is pumped into a balloon from under the polyurethane foam using a bicycle pump (we pump a maximum of 5 atmospheres), then through a water tap we let it into the tube in which the dart is located, under pressure the dart flies out at a very high speed and flies very far. The dart launcher was tested on a chicken and a hare (dead) and I was very pleased as it pierced both right through, while the feathers of the dart remained in the carcass. but today I will show you a test on wood (pine) when shooting from two meters.
open the rubber seal 
insert the dart. 
We close the shutter and shoot at this tree. 
We get there and mark the depth. 
We tear it out with pliers and freak out. 
Here's a comparison with a matchbox. 
So let's sum it up, the results.
There are no photos or videos of production, I was captivated by the assembly process. All connections are made by cold welding. darts made of nails and paper with a joint wrapped in electrical tape.
Well, without the parameters of a dart launcher.
barrel length 70 cm
diameter 20mm
material metal-plastic
aluminum stock, bolted connections
Compressed air cylinder material like tin
connections of the cylinder with the barrel and valve are made by cold welding
Well, now the shooting parameters
effective range 100-150 meters
the total flight range of a dart at a barrel angle of 30 degrees is about 400 meters
pressure in the cylinder 4.5 atmospheres
and here are the pros and cons
+simple design, anyone can assemble it; their hands grow from where they need to be
+ lethality
+ availability of materials both for manufacturing and for shells
-long recharge
- if the sealing is poor, a rupture will occur (to avoid this, you need to inflate the balloon a little with air and lower it into the water, where bubbles will come from and seal it)
- accuracy varies, but mostly indoors from a distance of 10 meters, accuracy is 15 cm with a 70 cm barrel, and 10 cm with a meter barrel
Of course I'm happy with everything. Here are a couple of tips if you assemble using my technology: do not skimp on cold welding, do not inflate the balloon to more than 6 atmospheres. For technical reasons I can’t upload the video.
In my plans, the design of a pneumatic machine is maturing, so we are waiting.
See you.
Dear readers! The article was published a long time ago and was written for specific videos in the “humor” category. Over time, many creators have chosen to remove their videos from YouTube. Nothing can be done about this, and there is no point in rewriting the article from scratch. So I leave the corresponding inserts in place of the removed rollers. For the sake of history, many of the carved examples of manufacturing were quite interesting.
All owners of pneumatics sooner or later have a desire to tune their favorite - increase power, accuracy, make a beautiful body kit. The extreme form of such an activity turns into a desire to create something of one’s own. About how they make it in Rus' Airguns with your own hands and we will talk further.
The original idea of the article was far removed from the current content; drawings, diagrams, manuals, the best original works, etc. were planned.
Expected
But after viewing the available information on YouTube, the worldview on this problem has changed; what happens next can contribute to causing nervous paralysis and the wildest criticism. So the faint of heart is better off looking for something else. And yes... there will be a lot of videos so that you can experience the same thing that I did. But first, a little educational program on this Wednesday, so that the hearts of seasoned pneumatic pipes certainly don’t skip a beat.
Operating principle
A slight evolution of weapons from our childhood. Surely everyone reading this has thrown a stone at someone at least once in their life? Surely almost everyone had a couple of dozen slingshots? And who made a crossbow with elastic bands and a clothespin? Has anyone used inflated bottles among throwing weapons? Now, if the memory begins to recover, then we continue.
Since homemade pneumatic weapons are not shown today by high masters of this business, the main principles of creating them are simpler and cheaper. Therefore, the basic principles of operation of such weapons are:
- rubber(!!!)-piston pneumatics - based on “syringes” and rubber bands
- PCP – no matter how cool it sounds based on plastic bottle and bicycle pump
It is these two classes that describe the entire model range of Internet inexpensive homemade pneumatics. There are also options with flammable liquids... but this is another level.
Caliber
Since for the most part craftsmen are not familiar with the standards in the field of pneumatics, the bullets for such weapons are very specific. From the usual ones, 4.5 mm “shots” and 6 mm airsoft balls were seen. Unusual items include cardboard, stones, syringe needles, nails, darts. Here is such a friendly list. By the way, in terms of power, some samples would be worth checking for muzzle energy.
Material
The material used here is also very different. From the most amateurish wood carvings to quite passable, almost jewelry-like metal work. But the main class of items used are plumbing fixtures for various purposes. When you watch the video in the future, you will notice this more than once.
Masters
It remains to be seen who the very magicians of modern cheap pneumatics are. No, gentlemen, these are not plumbers or even Mario. In the video, it is mostly children who are making samples of light hardball weapons... Apparently, children of hardball players (since a bottle of “Vstrel” was spotted, I really love it). Or airsoft plumbers (judging by plastic trends). Or partially conjugated... Let’s not get carried away with such a terrible “Santo Barbara”, but something here is clearly not clean. I suggest you start getting acquainted with exemplary videos from around the world.
Rubber piston gun
Here's how to make an air gun. Mostly, what follows will be shown homemade rifles, but this is where you can see a pistol, and even a RUBBER-piston one. I sincerely hope that the audience of this resource will not need diagrams, let’s use our heads. You don’t have to watch the video unless it’s for general education or to lift your spirits.
PCP principle
The author of this video will teach how to make an air gun based on PCP - bottle, nipple, pump, bolt, valve... In general, I am attaching this video as a basic principle for organizing in a simple form all the following samples.
PCP with metal storage
And in this video, almost the main “terrorist” of this country shows us a new PCP with an installed metal tank. I added the video out of possible interest in the author; in his videos he shows the making of anything and everything, and most importantly, something that explodes (worse than HOGs). The required management may be interested.
PCP at 4.5 mm
And here is another homemade pneumatic weapon based on PCP under 4.5 mm with a tube-shaped reservoir. The technology is one of the most widespread on the Internet. Along the way, hardball players will soon be re-equipped...
PCP with a "strong one and a half"
And this is a variant of the previous pneuma, but with the most ordinary one-and-a-half-wheeler on board. For some reason I even liked her more for her originality.
Rise of the Plumbers
And here the scope is wider, you can immediately see the “not childish” fun. It feels like the pipes from my bathroom have been dismantled and gone to war. Shoots a nail dart. In general, I recommend watching it, it’s a good vintar. And most importantly, the descent is very entourage.
Airsoft
And here the author offers a do-it-yourself air gun for airsoft... to be more precise, a plumbing machine gun. The video is popular on the Internet, maybe someone has seen it. On foreign language, but I think almost everyone here will understand how to assemble pipes. The most complete manual for assembling a machine gun to destroy visible and invisible enemies.
Bonus!!!
And finally, just a cool video about a homemade pneumatic pistol with a high changeable caliber - potatoes. For those who have something like this lying around in their cellars since winter, I suggest switching to such a projectile. Moreover, production is as simple as shelling pears.
That's all. So we learned how to make air guns in the most difficult and limited conditions. Danila Bagrov with his plumbing sawn-off shotgun simply does not live up to the level. And due to the young age of the main participants, it’s even scary to imagine what will happen to hardball in 10 years. Stay with us, play, shoot, and most importantly, don’t keep all this higher-level nonsense in your head. Have a great weekend everyone!!!
For a caliber of 4.5 millimeters and a bullet weighing 0.68 grams, this is two hundred seventy-two meters per second. Hunting pneumatics are selected for specific needs. For example, hunting a fox or a wild boar forces you to be extremely careful and use powerful weapons. You can also choose airguns for bird hunting from manufacturers such as Umarex and Crosman.
To be honest, I have a mixed attitude towards very powerful air rifles in general and huge calibers in particular. The fact is that air rifles occupy a certain and very specific niche. Usually they use pneumatics to hunt crows and rodents. Miracles do not happen: powerful pneumatic guns bang quite loudly (although quieter than a firearm). Pneumatics take their toll on accuracy, not power.
For such hunting, air rifles are perfect, the initial speed of which reaches 300 or more meters per second. Hunting pneumatics are used more often in pursuit of other animals and birds. Pneumatics for hunting are often used for catching birds. Pheasant or duck hunting is carried out only in the few forests and swamps where they are found, but pistols can also be used for them.
Noble Chronicles
Yes, indeed from pneumatics, according to. Law on “Hunting”, hunting is PROHIBITED! Even if you just walk around with pneumatic guns at the ready in hunting grounds (at least during the hunting season), when you meet a huntsman there will be problems - a fine with all that it entails. You can hunt with a “hunting” weapon; pneumatics do not initially fall under this category.
Weapon world map
Do you think there will be enough pneumatics for these purposes? And what is the minimum price I can meet? And the desire disappeared again... Do you think it’s possible to hunt game with a regular Gamo Hunter 1250 rifle without the “F” marking and I heard that there are some permits for hunting with air guns??? About hunting with pneumatic weapons - in the latest edition of the federal law on hunting, I don’t remember clause 1, it says “hunting with pneumatic weapons classified as hunting”, nothing about caliber.
Here is the promised second video. In it you will see shooting. Subscribe to the channel, there will be a lot interesting videos. Not only about this pneuma, I will soon make a new one, I will film and post everything.
For this, a caliber of 5.5 millimeters and a power of forty joules are sufficient. Making more powerful air rifles and hunting mammoths and dinosaurs with them makes me think of perverts. This is akin to the pointless production of cakes weighing a ton and sausages a kilometer long.
The most important thing is that it is quite effective and QUIET. Some of the models of air guns described can be bought in Russia without a license. For those who hunt long distances, you can increase the speed to three hundred and twenty meters per second. But this is difficult, especially for a 4.5 mm caliber, it leads to excessive air consumption and, accordingly, problems arise with the volume of the shot. As I already wrote in the article about the most powerful pistols, the most powerful models of air rifles are usually homemade or very few in production.
Rifle in 308 caliber, with a five-liter tank high pressure allows you to fire four shots with constantly decreasing power. At the first shot, a bullet weighing 8.5 grams accelerates to two hundred and sixty meters per second.
But with a caveat, pneumatics are a delicate and at the same time powerful thing, that is, I want to say that each gun corresponds specifically to certain goals and objectives
The calibers of homemade barrels are limited only by the designer’s imagination. It is possible to buy it, but I can’t imagine where it can be used in Russia. In a caliber of 6.35 millimeters, a bullet weighing 1.97 grams flies somewhere far beyond sound. True, the rifle has a power regulator and a decent silencer.
The American shaitan - the Air Force Condor pipe promises a speed of three hundred eighty meters per second and a power of one hundred joules. The most powerful pneumatic rifle from CROSMAN this is CROSMAN Rogue® .357. If their inch caliber is translated into Russian and the metric system, it will turn out to be nine and a half millimeters. The power for this caliber is very moderate - just over one hundred joules, but the highest accuracy, reliability and workmanship.
In first place is definitely the American shaitan pipe and anti-tank rifle rolled into one - Air Force Condor rifles. It’s hard to say what they show in large calibers - statistics are just being collected, but in 4.5 and 5.5 millimeters they are the undisputed leaders.
This is the most purchased hunting weapon in Russia. In third place is the HATSAN company with great power and Turkish quality. Lately The record holder for power in Russia is the Jaeger air rifle of 9 mm caliber.
It was available only to very wealthy people, which is why stories about hunting trophies obtained with the help of pneumatics are often found in the chronicles of European nobles
There is a variant in seven, which looks the same as in the photo and can also shoot full-bodied bullets. That's why the rifle has such a slightly strange appearance, but the power can be reduced from a maximum to three joules by simply pressing a button. In Russia, you can buy FX BOOS instead. In caliber 6.35 millimeters, MATADOR now costs approximately 62,000. Optics from 6,000 to infinity.
And I have almost no information on it. I tried to contact the factory, but they are silent like partisans
Yes, the assembly is ours. But this is the twenty-first century and the rifle does not have a gearbox, although the price is not small. Each weapon will be individual and unique!!! And they are right, with this “miracle” you can’t count on anything more.
The pump was always sold with the rifle, but was never integral part weapons. A receiver with a bolt, a magazine (if there is one) and a barrel is mounted to it. One of the most popular in the world hunting models- British Air-Arms S410. Nice appearance And low price($600 in the US) keep this rifle among the top sellers. But it is perfect for hunting wolves, foxes and animals of comparable size.
An air rifle that shoots a bullet of the same weight and velocity as just one of the shotgun pellets, but flies directly at the target, is much more effective. The accuracy of hunting pneumatics is quite sufficient to achieve the assigned tasks. But we will talk about weapons where accuracy is at the forefront - sports pneumatics - in the next issue.
But only with good optics can a great rifle and shooter reach their full potential. This is due to the fact that their recoil goes in the opposite direction, conventional sights cannot withstand the load and break, especially durable or specially designed ones are needed.
Crow hunting is incredibly popular in Russia, and there are many specialists who count the number of crows caught in the thousands.
This makes the hunt more interesting. Rabbit hunting is popular in the UK. It is not often that air pistols are purchased for hunting. It is not recommended to go hunting for such animals unless you have undergone training. It is best to practice before hunting, hone all kinds of techniques and work on targets. For example, the Diana 34 Classic Professional is considered the best airgun with a modern combination of design and technical power. This model is very popular among many hunters.
The ideology of hunting with pneumatics is completely different from that of hunting with firearms. Pneumatics for hunting of this class are purchased less often for these purposes, but they can be used without problems. Pneumatics for such hunting can be selected individually for each person or according to general recommendations. A permit is also not required for pneumatics.
Hello, man.
These summer holidays lasted two months, and all this time I was engaged in pneumatics.
Pavlenty (Bhaumi) SELECTED TYPE OF PNEUMATICS
Firstly, it’s worth talking about the direction of my developments.
rate of fire, accuracy, reliability - I decided not to touch all these characteristics, but directed all my engineering power to achieve the greatest power.
There are different types of pneumatics.
everyone knows air-fractures or, as they are scientifically called, spring-piston pneumatics (SPP). when a shot is fired, the piston begins to move along the cylinder, building up pressure in it, which in turn begins to push the bullet out of the barrel. This type of pneumatics is very common due to the simplicity of its design. Most air blowers of this type are low-power, but there are very strong representatives of spring-piston pneumatics (Hatsan 125).
the next type is PCP pneumatics (pi-si-pi). it has a built-in balloon into which a lot of air is pumped. Usually in factory "pisipishki" the pressure in the cylinder is about 300 atmospheres. a full cylinder is usually enough for many dozens of shots. One day I found a homemade PCP pneumatic on the Internet, made not by schoolchildren, but by grown-up guys whose hands grow from where they need to be. in that air, the balloon was again pumped up to 300 atm. and it was enough for 400 shots (!!!). this type of pneumatic is characterized by a high rate of fire, and if you turn to Wikipedia, it will be mentioned that some air guns of this type have an initial bullet speed of up to 450 m/s (this is a lot for pneumatics). but unfortunately I haven’t found a single PCP pneumatic on the Internet that has the same figure exceeding 350 m/s...
The next type of pneumatics is gas cylinders. most often presented in the form of air pistols. The operating principle of such pneumatics is very similar to PCP, but instead of conventional compressed air, carbon dioxide contained in the can is used. Usually one can is enough for 50 shots, after which it is replaced with a new one. Such pneumatics are not particularly distinguished by power... or anything else... (a toy, in my opinion).
and the last type of pneumatics that I will talk about is compression pneumatics. Such air guns have a built-in pump, which pumps once, after which the shot is fired. To shoot again, you need to pump the pump again. There is also multi-compression pneumatics (MC). here you can already make several pumping strokes. but after each shot, you need to download again. power depends on the number of strokes. you can swing it 1 time and shoot down the jar, or you can swing it 10 times and pierce the duck all the way through:0
This type of pneumatic gun has a very low rate of fire, but it has enormous power potential. That’s why I started making MK-pneumatics. Let's move on to the review of the first model.
Pavlenty (Bhaumi) MODEL 1.0 CYLINDER SIZE
Initially, I didn’t really understand that not much air was needed for one shot. main pressure. and the larger the volume of the balloon, the more air and the longer it needs to be pumped to achieve the desired pressure. In this regard, my first model, Turkey 1.0, was made from a can from a potato pest sprayer. she was bulky. it was impossible to hold it in your hands. although, in appearance, it looks rather powerful (well, it seems so to me), but in fact, in order for this nonsense to spit out something from itself at least a meter, it was necessary to make 100+ pumps with the pump: 0 it took more than 2 minutes to charge. Moreover, this gun was not mobile.
The photo shows an air gun without a barrel. the wooden handle with a pin is the release valve. you hit the handle down and a bird flies out of the barrel.
this 1.0 model was far from my ideal.
Pavlenty (Bhaumi) MODEL 2.0
After unsuccessful tests, I decided to radically change everything. the Turkey 2.0 model was much more mobile, although you had to carry a pump attached to a hose. here I decided to sharply reduce the volume of the balloon. in this model it was approximately 180 ml and was made from aluminum pipe. The photo shows that a car nipple is sticking out of the balloon. After testing, it was found that it was simply impossible to properly inflate the balloon through the nipple, so I had to tear off the nipple and connect the pump directly. that is, the air was inseparable from the pump, which significantly reduced its mobility.
power... yes, the power was great. pierced 2 - 2.5 cm of wood with a nail, and an iron lid with a drill. but I would like more :)
the trigger mechanism remains the same. you had to hit the handle from above, which is not very convenient. and if you shoot from a distance of more than 5 m, then it’s impossible to hit anywhere (haha)
a bolt was also made for inserting shells. The free assistant helped me with the photos.
Pavlenty (Bhaumi) CALIBER
The caliber of my air gun was 9 mm. By the way, the caliber of most factory air blowers is 4.5 mm. the large caliber somehow upset me, because it required more air to push out a large-caliber projectile, which means you need to pump more. I told my friend about my problem. he successfully joked that if I reduce the barrel, then my air gun will then shoot with the barrels themselves. during that conversation I thought it was absurd... I didn't know what would happen next.
What I liked most was shooting drills. they have one very good plus. due to the fact that they have a helical geometry, they twist in flight, thereby becoming more stable in flight. During the experiments, the drill never cut flat. If you take powerful factory pneumatics or even combat rifles, then the barrel is threaded. due to which the bullet begins to rotate as it passes through the barrel. the range, accuracy, and stability of the bullet in flight increases significantly. I definitely can’t cut a barrel in my workshop: (for this you need a special machine. But shooting with drills slightly compensates for the lack of a threaded barrel due to the fact that the drill itself is, as it were, cut.
Pavlenty (Bhaumi) MODEL 2.1 AND 2.2
The next stage in the evolution of my pneumatics was an even greater reduction in the volume of the cylinder. in model 2.1 (no photos of this model have been preserved) its volume was approximately 100 ml. if in model 2.0 you had to do 8 pump strokes (then you just don’t have enough strength), then in model 2.1 you need to do 6 pump strokes to the maximum. the power is the same. but here there was a problem... if I can’t pump more with the pump... that is, 6 pumps is the maximum: (that’s it. I can’t make the air more powerful - I thought and began to feel despondent and upset. For several days I suffered from creative crisis, I thought that everything was lost, there was no more meaning in this life, until one thought hit my head using Pascal’s formula (or whatever it is): pressure is equal to force divided by area, we can conclude that the smaller the pump has a piston ( that is, the cuff, that is, the diameter of the cylinder) the easier it is to pump with a pump (I could describe everything better, but I won’t bother, anyone who wants to will understand, in general, it dawned on me: I need to throw out the factory hand pump and make my own). with a smaller cylinder diameter, which is what I actually did after several unsuccessful attempts to make my own “high pressure” pump, I finally succeeded: D
the pump was 90 cm long and could pump a little more than 15 atmospheres. Pavlenty is rejoicing. development continues. the next model of my air 2.2 was already with a built-in pump and an even smaller cylinder. Now the volume of the can was approximately 50 ml.
I could make 5 strokes with the pump (I couldn’t handle it further), but this was enough to pierce more than 3 cm of wood with the pump. a breakthrough was made. the power has increased, and the reload time has decreased (from 6 to 5 pumping). cheers, comrades. photos of model 2.2. attached:
Pavlenty (Bhaumi) MODEL 2.3
If you look at the photos of Turkey 2.2, you will notice that its pump and cylinder are perpendicular to the barrel. this is very inconvenient and not beautiful... ugh... it was necessary to somehow make the whole thing more compact. After thinking a little, I decided to go to the store and buy 2 water corners there. These are probably the only 2 things I bought. yes, yes, reader. all the air, not counting these two corners, was collected from trash that I found near the house (or in the house). Having bought two of these nonsense, each for 70 rubles (140 rubles... I’ll go broke like that), I made the barrel parallel to the pump and the spray can. just like that. this is model 2.3.
Pavlenty (Bhaumi) MODEL 3.0
After conducting experiments with Turkey 2.3, I realized (strangely why not right away) that I had to make a lot of effort to open the release valve, that is, to shoot. the trigger mechanism remained the same primitive: you hit the pin with your hand, which pushes the valve. something had to be done about it. After watching all sorts of videos on YouTube about homemade PCP air vents, I noticed that they all have a striker (a striker. I don’t know what it’s called. pfft). In general, I decided to make a drummer.
here a problem arose... before I did without a stock, I didn’t need it. but if you make a striker, then it must be secured behind the release valve. that is, I needed to make some kind of frame to place everything on it.
Having climbed the mountain “Olympus of Construction” and having come there to the master Ivan (my dad), I asked him... for a board. Yes, thicker. he gave me access to a pile of boards, and after thinking a little, I decided to take an oak board (oak is strong). taking oak was my mistake. if I had taken pine or linden, I would have made a bed in one day, but I spent 3 days fiddling with an oak board, hollowing out something similar to a bed from it. after some gentle processing it began to look quite good.
the firing pin has a lever that you pull to cock it. after this it remains in a tense position. you need to shoot outside thumb right hand push the lever up. it will slide off the step and, under acceleration (under the action of the spring in it), will hit the valve. It is difficult to cock (which means it is powerful), but if you make more than 4 strokes with the pump, the hammer often does not have the strength to open the valve. This is very bad, because I’m afraid I won’t be able to make a more powerful drummer. I present Turkey 3.0:
Pavlenty (Bhaumi) FIELD TESTS OF MODEL 3.0
I did a lot of testing with this model. Unfortunately, few photos were taken, because at that time I had not yet thought that they would be needed and that my air vehicle would still undergo big changes.
Let's move on to testing.
It’s worth saying that, as a rule, my projectiles always have some kind of limiters: nails have heads that prevent them from further entering the target, drills have a thick layer of electrical tape at the end so that it fits the caliber. in this regard, although the shells had greater penetrating ability, they did not always penetrate their targets. however, they sewed targets such as tin cans and coffee cans right through on both sides and even two cans per shot.
I like to measure the penetration power of wood. Model 3.0 hammered a nail 3 - 3.5 cm. Excellent. I also had a hollow brick from a heater. Having shot at it with a drill, I got a complete penetration of one side. This surprised me. punching 1.5 - 2 cm of brick - I really like this. The power is excellent. Having shot all the cans and lost all the drills, I decided to make ultra-light traumatic bullets from potatoes, and later from beets. At first I wanted to shoot potatoes at people, but after testing on plywood I realized that even potatoes can cause serious harm to a person. After shooting potatoes at the plywood, I was stunned. a small piece of root vegetable pierced the plywood: 0 and the projectile scattered into molecules (this is a figurative expression).
I also decided to play a little with plasticine, namely, shoot at it and look at the traces of hits. and now the photos:
Pavlenty (Bhaumi) MODEL 3.1 DIMENSIONS
It would seem that it’s time to finish the project, everything is fine, the power is excellent, but I was really not satisfied with the size of my Turkey. The total length of the air was 148 cm. In addition, it had to be pumped. after extending the pump rod, the length of the air vent increased by another 80 cm. That is, this nonsense was already about 2 meters. it was inconvenient to pump, the pneuma was heavy. The power is there, but I would like to see it in a more compact mode. I decided to do a desperate thing: shorten the overall length of the air. the first thing was to shorten the pump, the length of which was 90 cm. Then it turned out that my barrel of 9 mm caliber and 87 cm long was longer than the pump, so it became impossible to pump air. I felt sorry for shortening the barrel. I will never find such a pipe anywhere else (the handle is from a mop). I decided to take the pipe from the curtain. I will have 5 meters of these pipes. the barrel was made 50 cm long. Accuracy at a long distance would naturally decrease, but since I didn’t have a sight and I was aiming bluntly by eye, at the barrel, there was plenty of accuracy with a 50-centimeter barrel. the caliber also decreased. now it is 7.5 mm. and since the caliber is smaller, the bullet speed will be greater. I also shortened the balloon a little. its volume became approximately 30-40 ml. after all the modifications, I assembled model 3.1 and got a total length of 126 cm. That is, it became 30 cm shorter than the previous model. By completely remaking the rod for the pump, namely making it from an aluminum tube instead of an iron pin, I significantly reduced the weight of the air. Now it has become lighter and more compact.
remember what I said about the joke about shooting with guns? So, after some shots, the barrel simply flew out of the trigger tube... if it weren’t for the handle on the barrel, it would have completely flown out of thin air. This is no longer funny: 0 we had to make a tighter bolt, which slightly reduced the convenience of closing it.
what about the power? power... it decreased: (decreased noticeably: ((
Now the nail penetrated the board no more than 3 cm (within 2.5 - 3 cm). I was upset. but the work of shortening the pneuma had already been done and nothing could be returned. I decided that this power was also quite decent.
As for the pump, it was now possible to pump a maximum of 8 times (instead of 5). the rate of fire thereby dropped. I wasn’t too upset because the pump became smaller and more convenient, and it was possible to compensate for the recharging time with quick pumping.
Pavlenty (Bhaumi) Hatsan 125
I’ll make a small lyrical digression.
The most powerful air gun I've seen on the Internet is the Turkish spring-piston Hatsan 125. According to the manufacturer, its initial bullet speed can reach 380 m/s... let's make a comparison.
bullet speed:
Makarov pistol - 315 m/s
TT pistol - 420 m/s
AK-47 - 715 m/s
SVD - 830 s/m
Mosin rifles - 870 m/s
T-90 tank - 1700 m/s
the newest electromagnetic gun in Russia (railgun) - 5500 m/s
:D
someone may have noticed that Makarov’s bullet speed is much lower than Khatsan’s. but the air gun has a bullet mass of 0.5 g, while Makarov’s has more than 6 g. This is where the hidden energy of the firearm lies. Although the Hatsan has a high muzzle velocity, the muzzle energy of this air gun is only 33 J, while for the Makarov Pistol it is 300 J. 10 times more. but there is a big BUT: when hunting small game (duck, bunny) there is nothing better than pneumatics. Hatsan can punch right through a duck, which is more than enough to take it down. In addition, pneumatic guns have very little recoil and shot noise.
a few words about muzzle energy. According to the law, pneumatics cannot be more powerful than 25 J. The Hatsan has 33 J.. the law is circumvented in this way: when purchased, there is a weakened spring in the air, thanks to which the power drops to the permitted one (25 J), and the Hatsan comes with a reinforced spring. the buyer, at home or with the help of a specialist, changes the weakened spring to a strengthened one and receives 33 J. just like that.
Pavlenty (Bhaumi) MODEL 3.2 FINAL DEVELOPMENT
Turkey version 3.0 turned out to be the most powerful. but due to its length and mass, it did not become the conclusion of this project. I decided to achieve increased power by improving the quality of some parts. I spent just 1 day trying to make a good release valve that opens when necessary, closes when necessary, practically does not poison and does not break after 2-3 shots. The development is secret, I didn’t take pictures. Then I modified the trigger mechanism itself, making it better and more convenient. a normal trigger appeared. Now there was no need to protrude the lever on the bump stop with your thumb. I also tried to better connect the pump with the can and with the trigger mechanism.
the stock was painted black. the appearance turned out to be quite good. beauty:D
Pavlenty (Bhaumi) more photos:
Pavlenty (Bhaumi) and also:
Pavlenty (Bhaumi) FIELD TESTING OF THE FINAL VERSION
The development of my air gun is complete. this is the final version. which means it’s time to conduct penetration tests, as well as measure the initial velocity of the bullet.
go.
the shells are made of nails (150 mm). bullet weight 6 g.
the tree penetrates an average of 3 cm (yes, model 3.0 was more powerful).
cans, coffee cans and paint cans rip right through on both sides, even despite the stops on the bullets.
breaks through one side of the bucket and gets stuck due to the stopper.
In experiments with beets (replacing potatoes), it was found that the root crop could no longer penetrate plywood. this was due to a reduction in power and caliber. (previously the potato pellets were larger).
short projectiles from a nail get stuck in a two-centimeter board due to the limiter, appearing slightly on the reverse side.
Pavlenty (Bhaumi) MEASURING THE INITIAL FLIGHT SPEED OF A BULLET
and so, guys, measuring bullet speed without a chronograph. let's go.
At first I decided to take measurements acoustically: you record the sound of a shot and the sound of a hit on a voice recorder, then use a sound editor to see how much time has passed between these two sounds, divide the distance from which you shot by the resulting time and get the speed. it seems simple - I thought, and took more than 20 measurements... the results turned out to be too different from each other. in some places they were underestimated (I thought so), in others they were fantastic (I got more than 2000 m/s on two measurements). Apparently I don't know how to use a sound editor (pfft). I decided to give up the idea and started measuring the speed using a ballistic pendulum. The principle is this: a suspension (taftalogy) is suspended at a certain height, at which you need to shoot. the bullet should get stuck in the suspension. after the shot, the bullet transfers energy to the gimbal, causing it to move, moving the slider in front of itself. after which the distance by which the slider has moved is measured. a tricky formula is taken and the speed of the bullet is calculated.
For all this pendulum shenanigans, I needed to know the exact mass of the bullet and the mass of the suspension. I didn’t have scales... I had to make... lever ones. the result was a fairly good scale, capable of measuring the load with an accuracy of plus or minus 3 g at heavy weight and accurate to the gram with very low weight. I poured water into the counterweight with a syringe. since the volume of water is numerically equal to its mass (that is, 10 ml = 10 g).
Having learned all the necessary parameters, I began to measure the initial speed of the bullet.
Pavlenty (Bhaumi) RESULTS
I shot two types of shells: beet bullets and nails.
To begin with, I didn’t worry too much about the accuracy and purity of measurements. I took more than 20 measurements and... I was horrified: 0 the speed of the bullet when shooting beets reached 382 m/s... but... to achieve such a speed, the air must be heated. but in my air it doesn’t heat up in any way, and I shot in the evening: there was no sun. what is this... it can’t be... I decided to reject the results and do everything again.
refined measurements were carried out. all the next day I did nothing but try to achieve the greatest accuracy. The changes also affected the scales; they became more accurate. It turned out that my suspension weighs 20 g less (this is not that much, but still). I also tried to take into account many factors, including the time of day. and for good reason! After calculating the speed of the bullet, it was found that at night the air gun shoots a little weaker than during the day. apparently due to a decrease in air temperature at night.
More than 40 updated measurements were carried out.
First, I’ll tell you about a bullet made from a nail, the mass of which was 6.5 g (plus or minus 0.3 g).
the initial flight speed of the carnation varied between 48 - 56 m/s. seems like a little? still breaks through the bucket.
Let's see what happens with the shells made from root vegetables.
I measured the bullets in groups of 20-30 pieces and divided the resulting mass by the number of bullets. So the resulting average mass of one bullet was 0.44 g.
the initial bullet speed was 173 - 195 m/s...
this won't kill anyone...it's a shame. and in flight, due to their irregular (almost square) shape, they quickly lose all their power. if you shoot at an aluminum sheet from 5 meters, then distinct dents from the beets will form in it, and when shooting at the same sheet from a distance of 20 m, only a wet spot will remain. I wasn’t upset by this, because it’s all about the bullets, and not about the air itself.
I would like to note that the air gun was made quite powerful, but still did not exceed the power of the most powerful factory air gun in the world, Hatsan 125. Also, do not forget about other characteristics. The reliability, accuracy, and especially the rate of fire of my pneumatics leave much to be desired. Yes, I can easily hit a 0.5 by 0.5 m aluminum sheet from a distance of 20 m, but the accuracy should be much better. as for the rate of fire. I didn’t take measurements on this matter, but if you estimate by eye, it turns out to be about 15-20 seconds per shot.. hmm.. I thought it would be much more.
Overall I consider my work quite suitable and successful.
Thank you very much to everyone who read. You can like this message, just so that I know that someone has read it, and you can also leave your comment, question, criticism right here... or if you find any mistakes, be sure to write about it.
Next time we'll do something more powerful than Turkey :D
beaver everyone.
Tags: How to make air from a pump at home
How to make pneumatics at home? In this video you will learn about it! Attention! Don't you dare shoot...
How to make a butt for a homemade air gun. Help me give you the dimensions or how to make an air rifle from a pump. | Topic author: Nina
Anna Hello!
You were funny with the rifle from the pump!! !It’s cheaper to buy MP-512 Polina right away, and then UP if you get tired of it. Or take IZH-60 right away, with subsequent modernization in PCP, only this will require up to 3 thousand, for vintar and whales another 10 thousand.
I won’t describe here what and how to do, it’s better to immediately give links to the main airgan resources, everything is explained and shown there in detail.
Here are the links for Murka 512 -
Or look on another airgun website - talks.guns.ru, there is a lot of stuff there
I see another pneumatic airgunner is being born!! !
The pneumatic one sees the pneumatic one from afar!! !The crows running amok at your dacha and your neighbor’s dacha won’t have long to live.
Just follow the safety rules for using weapons!!!
Good luck! Bye!
Natalia Maybe you’ll find something
Inna here you go
