SpudFiles

Finally finished it. This things is monstrous, plainly said. Almost 15 pounds of raw power. The chamber is about 30 inches of 1¼ PVC, with a side chamber thats about 16 inches of ¾ PVC. It is filled through either a ¾ check valve, or a Schrader valve in the endcap. The barrel is about 54 inches of ¾ pipe and has bolt action, perfect for paintballs with wadding. I also have some "deadlier" ammo that I plan on testing tommorow (just finished gluing it about an hour ago). The sprinkler valve is a modded Orbit ¾ inch valve. When I drilled the hole in the center of the valve, i f-ed up the angle, and the only way it doesn't leak is if i screw the blowgun in all the way, which restricts the diaphragm A LOT. Tommorow I'm gonna get out the JB*Weld and unscrew it a bit, and then pour on the epoxy. The stock was a bit shorter than I planned, but its still comfortable to hold in either a standing or prone position.

Sooner than late, I plan on giving the stock a sheet metal frame, doing some body work with Bondo, and giving it a nice brown and black paintjob to give it the look of a rifle (just so it looks remotely like one).

Enough of my rambling, pics are here: http://pneumaticsniper.mypicgallery.com/

UPDATE:
It finally has a name. Pneumtic Stock Mounted Starch Accelerator My parents got pissy at me because I called it a sniper and they're paranoid, so I had to change it. Also got a video.
<a href="http://www.pebr.webhostfree.net/Videos/Movie01.wmv ">Click Here</a>
<a href="http://www.pebr.webhostfree.net/Videos/ ... wmv">Sheet Metal Destuction</a>

EDIT: No replies yet? Come on folks.

I like it, how much did i cost for the sprinkler valve. im thinking of getting one.

The sprinkler valve cost me approximately 11 dollars, and all the stuff to mod it cost me somewhere aroun 6 dollars. Of course, the only place i found them was in the Menard's in Council Bluffs, IA .

whoa, i just noticed that copper checkvalve

Went out and shot (hehe) some video today of this thing in action. I bought a crappy spring pistol and the flea market for a buck. Like everythign from there, it didn't work, so I decided to blow it apart.
<img src="http://image.mypicgallery.com/pneumatic ... _large.jpg">
The gun was strapped to my target board from previous tests. The first shot clipped the action on the gun, and tore it off. The next one hit dead on, and blew the magazine out of the gun, and tore the trigger mechanism to shreds.
<img src="http://image.mypicgallery.com/pneumatic ... _large.jpg">
The remains of a cheap POS flea market BB gun.
And for the exit hole.
<img src="http://image.mypicgallery.com/pneumatic ... _large.jpg">

I only have the video of the second shot, because my camera didn't record for some reason. [V]
http://media.putfile.com/sniperdamage-003

That's nice penetration intothe wood there - what were you shooting? batteries?

I was shooting a 3/4 inch bolt wrapped in duct tape for a good seal. The wood isn't very hard, I can snap it if I punch it right. Although I have shot through plywood before using a AA battery wrapped up in duct tape.

Hey does some1 here possibley know how to make this kind of firing system and bolt action mechanism?

this topic is four years old