All metal shotgun

Cannons powered by pneumatic pressure (compressed gas) using a valve or other release.
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frankrede
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This is my latest cannon, it is very powerful and compact for its size. Lots of fun to shoot and ergonomic.
Chamber:1 1/4" sch-40 steel
Valve: 3/4" QEV
Barrel: 1/2" sch-40 steel
Favorite ammo: 4 marble scattergun shot

Now for some pics
<a href="http://s30.photobucket.com/albums/c325/ ... 391810.jpg" target="_blank"><img src="http://i30.photobucket.com/albums/c325/ ... 391810.jpg" border="0" alt="Photobucket"></a>

<a href="http://s30.photobucket.com/albums/c325/ ... 391826.jpg" target="_blank"><img src="http://i30.photobucket.com/albums/c325/ ... 391826.jpg" border="0" alt="Photobucket"></a>

<a href="http://s30.photobucket.com/albums/c325/ ... 391835.jpg" target="_blank"><img src="http://i30.photobucket.com/albums/c325/ ... 391835.jpg" border="0" alt="Photobucket"></a>

<a href="http://s30.photobucket.com/albums/c325/ ... 391873.jpg" target="_blank"><img src="http://i30.photobucket.com/albums/c325/ ... 391873.jpg" border="0" alt="Photobucket"></a>

UPDATE: Front foregrip, sight, and silencer
<a href="http://s30.photobucket.com/albums/c325/ ... 586096.jpg" target="_blank"><img src="http://i30.photobucket.com/albums/c325/ ... 586096.jpg" border="0" alt="Photobucket"></a>

<a href="http://s30.photobucket.com/albums/c325/ ... 586189.jpg" target="_blank"><img src="http://i30.photobucket.com/albums/c325/ ... 586189.jpg" border="0" alt="Photobucket"></a>

<a href="http://s30.photobucket.com/albums/c325/ ... 586155.jpg" target="_blank"><img src="http://i30.photobucket.com/albums/c325/ ... 586155.jpg" border="0" alt="Photobucket"></a>

<a href="http://s30.photobucket.com/albums/c325/ ... 586124.jpg" target="_blank"><img src="http://i30.photobucket.com/albums/c325/ ... 586124.jpg" border="0" alt="Photobucket"></a>

<a href="http://s30.photobucket.com/albums/c325/ ... 586155.jpg" target="_blank"><img src="http://i30.photobucket.com/albums/c325/ ... 586155.jpg" border="0" alt="Photobucket"></a>

<a href="http://s30.photobucket.com/albums/c325/ ... 586227.jpg" target="_blank"><img src="http://i30.photobucket.com/albums/c325/ ... 586227.jpg" border="0" alt="Photobucket"></a>
Last edited by frankrede on Mon Nov 24, 2008 11:26 pm, edited 1 time in total.
Current project: Afghanistan deployment
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CpTn_lAw
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I really like when it comes to simple designs. You manage to do it and you add the extra fun-factor to it. Simple, effective...what else? lol


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"J'mets mes pieds où j'veux, et c'est souvent dans la gueule."
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jook13
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Well, it looks a load of fun to play with. What PSI do you use on this thing? what do you use for a wadding? those QEV's are a lot of fun eh? I like how you cut off the bottom of the blowgun to make it smaller. I really wanna see some good damage pics. I think you should try about 50 BB gun BB's behind whatever wad you use, should be cool.

I am thinking a shotgun is on my future plans. I wanna build a gun that I can shoot clay birdies with.
I like to play blackjack. I'm not addicted to gambling, I'm addicted to sitting in a semi-circle.
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frankrede
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I don't need wadding with the marbles, but for BB's I use a bit of shop rag
Current project: Afghanistan deployment
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starman
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Getting those projects wrapped up huh Frank... :wink:

A workmanlike model you have here, simple and effective...and should last you a life time. Makes me want to throw one together.

Are you pumping this thing with CO2 like your recent PVC/sprinkler model?
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elad311
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Very cool cannon! :D
what is the operating pressure?
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frankrede
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Oh yea this thing will run off the co2 as well as soon as a I get a new bottle.
Current project: Afghanistan deployment
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Sticky_Tape
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Soooo WHAT PRESSURE WILL IT RUN AT?
You can tell how awesome a cannon is by the pressure used.
http://www.spudfiles.com/forums/high-pr ... 12803.html
xnt rnm ne z ahtbg
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ALIHISGREAT
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simplicity, hard to beat it... i was thinking of taking the 3/4" QEV off my PVC cannon and shoving some metal on it so i can use higher pressures.
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frankrede
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Sticky_Tape wrote:Soooo WHAT PRESSURE WILL IT RUN AT?
My regulator goes up to 800 psi with co2...haha, I will probably only take this beast too 350 psi tops and probably run it at 200 psi most of the time.
Current project: Afghanistan deployment
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john bunsenburner
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how did you seal of those screwy things on the chamber? im building a similar gun and it wont seal airtight....
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frankrede
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john bunsenburner wrote:how did you seal of those screwy things on the chamber? im building a similar gun and it wont seal airtight....
You mean the threads?
Those are sealed by Teflon.
Current project: Afghanistan deployment
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MrCrowley
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Nice little high pressure plinker :P

It reminds me of the one I built, I originally had the chamber backwards, but then it got too awkward to hold so I turned it around:

http://www.spudfiles.com/forums/files/t ... nd_192.jpg
http://www.spudfiles.com/forums/files/t ... ng_687.jpg

Can't wait to see those damage pictures :)
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john bunsenburner
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could i use duck tape or electrical tape with the same results?
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starman
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john bunsenburner wrote:could i use duck tape or electrical tape with the same results?
Not likely.... :roll: Where are you suggesting using duct or electrical tape on a high pressure pneumatic cannon?
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