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M.H.I.S Piston Shotgun.

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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M.H.I.S Piston Shotgun.

Unread postAuthor: rna_duelers » Fri May 11, 2007 10:37 pm

Made this little one a while ago,not to fancy and works just about as good as it looks,in other words hopeless.Tried to make it look good with some moulded PVC pipe.

25mm chamber.
15mm barrel.
Tee Piston.
120spi.

It worked well for a while but had alot of piston problems,kept leaking and breaking but when it was working well it was a good bit of fun.Used shotgun pellets with 2 felt wadding pieces and surpirzingly good long range shooting the pellets wouldn't spread to much and had enough energy at about 10 meters to still penetrate thorugh tree bark.But it's still a piece of sh!t.
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Attachments
it2#.jpg
looking behind.
it1#.jpg
Piston housing and things.Look at the moulded PVC, still doesn't make the gun any better though.
it#.jpg
The whole unit.Another M.H.I.S piece of art!
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Unread postAuthor: ammosmoke » Fri May 11, 2007 10:51 pm

I'll gladly take it of your hands :lol: No seriously.
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Unread postAuthor: TwitchTheAussie » Fri May 11, 2007 11:08 pm

I'd beat ya to it :lol: Nice work man.
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Unread postAuthor: spudthug » Sat May 12, 2007 8:51 am

this is sweet u shoudl get some damage pics. i like teh looks of it

u should put a 1/4 ball valve on it for ten times the performance. that blowgun probly decreases the performance horendously
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4" piston valved cannon-half done..( i spilt my cement...)

Hybrid- 75% done. need to build propane holder and drill/tap sparkplug hole..
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Unread postAuthor: rna_duelers » Sat May 12, 2007 6:14 pm

I did have a 1/4 ball valve on it for a while it worked wonders,but made it a bit weird to shoot could get the whole aim fire thing happening.

I'll see if I can find some things I shot as this cannon isn't used anymore got turned into parts....Because it sucked...

Looks is all it has going for it :wink: .
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Unread postAuthor: ammosmoke » Sun May 13, 2007 2:24 pm

Darn, that means that I can't take it off your hands....
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Unread postAuthor: Flying_Salt » Sun May 13, 2007 2:32 pm

Looks ike one of thos things that you spend math class drawing up on your graph paper, then build it in a day and forget to put the piston on, rip it apart and fix it, then try to shoot it but have everything blow apart, then realize you spent more time moulding that one sexy-looking pipe with curves than you did on the actual cannon.

I like it...
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Unread postAuthor: ammosmoke » Sun May 13, 2007 4:34 pm

LOL you draw up stuff in math class too? I always get good ideas during math class. Probably because it is so boring.......... :D
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Unread postAuthor: rna_duelers » Sun May 13, 2007 5:46 pm

Ahh the old days of math class drawing,I did a heap of my drawing and thinking in that class not much about maths though.
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