Machine air gun

Since air guns aren't considered firearms, could someone take a high velocity and caliber airgun (like the .357 pellet that they use for big game) and make it automatic? Basically pic related but with way higher fps and a larger caliber.

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So like a nail gun.

Yes, but you'd need an air tank the size of a car to have any amount of fun with it. Mind you that big bore air guns have noticeable drops in velocity after a couple shots unless you hook it up to a scuba tank full of air.

Yep. this. Even a full scuba tank only gives a few shots if you're talking about "big game" sort of airguns.

Disappointed Tippmann isn't making this. They used to make replica .22lr machine guns, before the machine gun ban killed their business model, forcing them to go into paintball.

>not going full flammenwerfer

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10 pound co2 tanks only weigh about 25lbs fully charged tho, I bet you could rig up a backpack with one as use it sort of like the old school 'nam flamers.

Are gas guns regulated?
Can one make a propane/othergas gun?

Still wouldn't really be enough for sustained full auto fire. You'd get a couple good bursts out of it at best.

You mean gas guns in the airsoft sense (which use propane/green gas, CO2 or a few others), or something like a potato cannon where there's actual combustion involved?

You have no clue how much air those magnum air rifles require.

also, CO2 isn't high enough pressure. A standard CO2 tank is about 830 psi when it's completely full. A magnum air rifle uses well above 3,000 psi.

>standard CO2 tank is about 830 psi
bruv what? As someone who has been buying 5# and 10# co2 tanks for brewing for years, you're wrong. They are generally between 1.2k and 2k service PSI.

The pressure in a full CO2 tank depends on the temperature. At room temperature (75F) the vapor pressure of CO2 will be around 832 psi (I don't recall the exact number, it's around there).

If you're seeing 1.2-2ksi then your tanks are being kept at a much higher temperature than the room temp I was assuming. Regardless, even 2k psi isn't high enough.

Personally I've always wondered if someone could build something like the Caselman air gun, but have it connected to a ultra small fuel burning engine like an R/C aircraft engine and connect to an equally small air compressor. Obvious this wouldn't be nearly as powerful as a conventional firearm. But it might fill an interesting niche for people that can't get well made cased ammunition.

It would be much simpler to use a chemical reaction to generate the high pressure gas rather than using an engine and a compressor. It would be more efficient too; compressing air wastes a ton of energy as heat.

No shit? Learn something new everyday

I hear smokeless powder makes a lot of gas for it’s size and weight

True enough. Compression are is pretty inefficient. But you know you do have a point about some sort of other chemical reaction.

Or you could just use a fucking shock pump and multiple HPA canisters like a normal person.

Well the silver lining is it worked out well for them, since they basically pioneered paintball. Still unfortunate because they made really cool mgs, and the grabbers stopped them from exercising their freedoms.

Tippmann recently started making semi-auto .22lr AR clones though.

>normie shit
Yeah, but if I were normal I wouldn't be hanging out on 4Channel.

subtle

You'd be retarded to use a co2 tank with this.
protip hpa paintball tanks can be had 68ci/4500psi and they're more than compact enough and only weight like 5 lbs.
ansgear.com/First_Strike_Standard_Carbon_Fiber_Air_Tank_w_Bas_p/fsstdtank684500basic-grey.htm?CartID=2

>pumping 4500psi
nigga

You're talking about co2 tanks for soda dispensers.
Other user is talking about tanks for welding.
I'm a welder, full tank is 2,000 psi.

There already are full auto .30 and 9mm air rifles on the market, do yo research senpai. They only hold like 10 shots though. The company is called Evanix. Although after doing a cursory google search myself I see the full auto ones are hard to find and expensive, they might not make them anymore. But I also see Saddle Creek gunsmiths will install the full auto switch on the semiauto for people so there must be a way still. Check youtube.

One thing though, the full auto models that I know of were all solenoid valve actuated so you need to charge the battery and the gun has an on/off switch which is off-putting enough that they made the newer Max Air and Air Speed models are fully air actuated, but as far as I can tell they'll be semi-auto only... I'm sure I could fix that :D

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Here is my bolty boy .30
Made it myself but its based on benjamin/crosman parts

The seven round magazines aren't available anymore but I'm sure someone could 3D print a modified spindle for the .25 cal ones, that's my plan since I've got a few more .30 cal pistols planned out..

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>US$1,237.50
fuuuck.

Oh yea and I'm working on a .30 cal "Caselman"-ish design based on crosman/benjamin parts

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For simplicities sake it's gonna look pretty wack until I can play with it and make custom parts. Magazine is gonna be next to the grip, and the barrel/breech is NEXT to the receiver... out of line with your hand. Could be fixed though. Gonna focus on getting it running first

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Someone already did it in .177

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Someday i'll do a .72 cal lol

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Concept magazine. Spring will be in another section of extrusion eventually

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I'm still saving for a good 'ol Quackenbush Outlaw .58... hope I get one before he retires. Might try to 3D print a 3 or 4 shot magazine for it like the Benjamin Marauder has

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Then slap a second cylinder on it for a 6 or 7 shot air capacity. Standard Outlaw gets ~3 shots before the velocity starts dropping.

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Really wish this Rakemaan guy put this beautiful 400fpe .50 cal single shot into production. Felons in california would love it

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And here is a Caselman for good measure

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Just a few? Idk man you may need to cite a source on that because it is certainly bullshit

Not sure, the law on firearms defines it as a thing that uses an explosion to propel a projectile so they very well may rule such a device as such. Obviously nobody gets charged with manufacturing a firearm for using a spud gun but there are other things some states could come up with.

There was an inventor who made a range sensing less-lethal gas combustion operated rifle that automatically adjusted the propulsion charge for the targets distance to deliver an appropriate amount of force, so that people won't die up close from bean bags anymore, and allowing it full power at longer ranges too. Not sure if it went anywhere.

Tipman made the C3 propane combustion paintbal gun, but it didn't do well. I almost bought on one ebay recently because they are badass. 40,000 shots from a green camping propane tank. Great for places with no co2 access.

You just make that cunt reeeeeally thin.

Reminds me of my old spudgunning days. Good times.
Pneumatics were always superior, of course.

It's not ridiculously hard to fill a small (9ci cylinder to 4,500 psi using a handpump. Only boomers complain about it. It's like 5 minutes of exercise.

imagine a great squirrel genocide

Flamethrowers are legal if I remember correctly. Why not just get one of those?

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I remember that there was one air rifle that stored the air in cartridges behind the bullet, just like a real gun. I wish air gun manufacturers caught on and built more of these since they would not require a large tank

Modified Drozd Blackbird would be ideal for that.
1,200 rpm select fire, adjustable rpm and burst length
1,100 fps with power mod and longer barrel
Decently accurate with lead bb's and a rifled barrel
Fuck now I need to jerk off

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Entirely different hobby.
The cartridges are retardedly expensive.

That design was first used by Brocock airguns I believe. Then there was Innovairtech, I think they went under. But a chinese airgun maker called AEA is doing it now, and Joerg Sprave is partnering with them to make 50 fpe arrow pistols from their pepper/irritant shooter, I believe they make big bore air rifles and pistols as well, but I can't find them online

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I love you user.

I think innovairtechs .50 cal did like 600 fpe, and they made a semi-auto one :D but WHERE IS IT NOW.
Maybe AEA will make it and someone can import them

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I think this thing did 400 fpe...
aww thanks :D
love you too boo

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here is their two shot arrow pistol. The bolts weigh 7 grams and carry 50 fpe so if a non-germany version was made that fired .50 cal slugs I'd probably cream myself

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1more4ubb

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Really though.
I only just started tinkering with my marauder and crosman custom 2400kt, but nothing like yours yet.
I want to convert my 2400 to hpa and hope it turns out half as good as one of yours.

are those things even available yet or are they still vaporware?

>over 3000 psi
Not really, most airguns are far more accurate at lower psi.

Most pcp guns are filled to 3,000 psi, some more some less.
Pic related is a .50 cal air rifle with a 4,500 psi tank. The description says it's regulated to 3,000 psi per shot and that you get three full power shots out of the 24 cubic inch tank.

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I do know that, I'm merely saying that generally your best accuracy is a bit under max power.

>Any Other Weapon

Since fucking when?

I should also add that 3,000 psi fill pressure doesn't mean that the gun fires using all that pressure. The valve doesn't stay open long enough to release all that pressure, or it's regulated to fire at a consistent lower pressure. It depends on what it's designed for, a more powerful gun will use a lot of air and a big heavy pellet. While a target gun will use a small consistent amount of air for accuracy and a large amount of shots per fill.

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Maybe I should give my piston-operated rubber ball rifle design a try.