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400 PSI "The Violator" Assasins Snipa Rifle

Built a pneumatic cannon? Then post it here! This section is for completed, finished cannons that you have built. Please include pictures and information.
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400 PSI "The Violator" Assasins Snipa Rifle

Unread postAuthor: PimpAssasinG » Wed Jun 15, 2011 7:47 pm

I found about Spudfiles.com about 2 weeks ago and i was wow, i can build nice high power air gun, so i decided to go with the piston valve design. I plan on transforming it in an hunting rifle, or totally replacing it with steel components and take it to 1000 PSI, or more with a home made HP pump. its .55 caliber, 40 inch barrel with barrel action breech loading. it shoots 4 inch 16 gram/ 246 grain nail thru 3 inches of solid wood from 15 yards, i didn't go past 300 PSI . I have a 400 PSI shock pump. The piston is made out of a screw with rubber sealing head, floating O rings and integrated some plastic washer for stability in the brass nipple, and rubber and foam bumper. ill put a scope on it some kind of stock. The air tank is a 12 inch galvanized steel pipe , and the volume is 150 ml, or cubic centimeters.
The piston has Teflon tape under the nuts, so the seal is perfect, this rifle will fire at 10 PSI, or 400 PSI. I get my scope soon,
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Attachments
DSC01207.JPG
DSC01208.JPG
DSC01209.JPG
DSC01210.JPG
DSC01211.JPG
piston with blue bumper and rubber bumber , and rubber sealing face, there is Teflon tape under nuts so its seals completely, fires at 10 psi
DSC01217.JPG
4 inch 16 gram nail, all the way in 3 inches of wood from 15 yards at 300 psi, then hit the back stop and ricochet back to me
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floating O rings , one way hole
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breech loading
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Last edited by PimpAssasinG on Fri Jun 17, 2011 9:49 am, edited 21 times in total.
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Unread postAuthor: Doctore » Wed Jun 15, 2011 7:51 pm

Sounds cool.
Can you post pictures of it???
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Unread postAuthor: warhead052 » Wed Jun 15, 2011 7:51 pm

Got any pictures? It could be possible to take down medium sized game with some homemade missile like rounds.
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Unread postAuthor: Doctore » Wed Jun 15, 2011 8:01 pm

What kind of air supply are you gonna use???It must be very compact.
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Unread postAuthor: PimpAssasinG » Wed Jun 15, 2011 8:09 pm

im gona make a homemade foot pump high volume, like those on this website that's gona go to 1000 PSI, the shock pump takes longer
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Last edited by PimpAssasinG on Wed Jun 15, 2011 8:18 pm, edited 1 time in total.
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Unread postAuthor: saefroch » Wed Jun 15, 2011 8:13 pm

Please read the forum rules.
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Unread postAuthor: velocity3x » Wed Jun 15, 2011 10:15 pm

PimpAssasinG wrote: maybe when i upgrade to 1000+ psi,


Congratulations on your gun. Before you jump to 1kpsi, you should consider that 1000psi in a fair size volume isn't just some random number that sounds cool in discussion. It's a whole lot of pissed off power searching for a place to escape.
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Unread postAuthor: MrCrowley » Thu Jun 16, 2011 12:05 am

I apologize to those who posted respectful replies warning the OP of the dangers and illegality (on this forum anyway) of hunting animals with a homemade weapon. Some of you may have included niceties about this particular gun in your reply so I'm sorry that they were deleted due to the included content of hunting animals in the same post.

PimpAssasinG,

Don't be a dumbass. You will either get yourself killed or you will seriously maim an animal with what you intended to do. Frankly, if your death wouldn't shed bad light on this forum, I'd prefer the latter of the two. I'd pay serious attention to velocity3x's post as well.
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Unread postAuthor: Major Collins » Thu Jun 16, 2011 12:07 am

good cannon. dude dont talk bout hunting ,mods will get you for it
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Unread postAuthor: PimpAssasinG » Thu Jun 16, 2011 12:28 am

http://www.spudfiles.com/forums/high-pr ... 18170.html

this is what i wanna do for high pressure pump, 2 stage
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Last edited by PimpAssasinG on Thu Jun 16, 2011 12:47 am, edited 3 times in total.
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Unread postAuthor: MrCrowley » Thu Jun 16, 2011 12:36 am

PimpAssasinG wrote:well i didn't know its illegal to assassinate whit air rifles, or that is illegal on this forum, but you can buy air rifles to assassinate, so why would that be illegal?????, and by the way shooting at object gets boring fast,

I told you to read the RULES.

Not only does it tell you what is legal and 'illegal' to discuss on this forum, it also mentions that discussing explosives is not allowed.
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Unread postAuthor: PimpAssasinG » Thu Jun 16, 2011 12:50 am

anybody know the PSI rating for galvanized pipe and fittings, safe working pressure??????? what about brass is it weaker or stronger
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Unread postAuthor: MrCrowley » Thu Jun 16, 2011 1:19 am

1000PSI would be safe enough for galv. iron, I wouldn't risk it with brass though.
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Unread postAuthor: squidchicken » Thu Jun 16, 2011 3:45 am

pilot volume is kinda big, should put a spring so you can put it where the chamber is
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Unread postAuthor: Crna Legija » Thu Jun 16, 2011 4:13 am

That piston looks way to ghetto for 1000psi, the rated pressure for these pips is 150psi, but many have taken it way passed that. I would go buy stainless pipe and fittings only because they wont rust and eventually weaken the pipe.


someone might wanna edit the first pic's Description.
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