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B.S.R. 75 breech loading bolt action spud gun

Built a combustion 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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B.S.R. 75 breech loading bolt action spud gun

Unread postAuthor: spudrouge420 » Sat Aug 07, 2010 5:37 am

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Unread postAuthor: Stolly32123 » Sat Aug 07, 2010 5:40 am

Wow. that looks beautiful. any chance of some more picks and detail?
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Unread postAuthor: chinnerz » Sat Aug 07, 2010 6:18 am

Stolly32123 wrote:Wow. that looks beautiful. any chance of some more picks and detail?


I second that!
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Unread postAuthor: irisher » Sat Aug 07, 2010 12:10 pm

That has got to be the best spray and pray I have ever seen. I really like how the bolt action exposes your combustion chamber for fueling/venting.
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Unread postAuthor: Gun Freak » Sat Aug 07, 2010 12:56 pm

Wow I love it! Very much like the Barrett M82!
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I have plans to make a pneumatic version... Watch out 8) :D
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Unread postAuthor: Ragnarok » Sat Aug 07, 2010 2:29 pm

You know what I think would be good? If you could replace the screw end cap.

O-ring at the back of the chamber, O-ring an inch or two forwards, cut a hole in the side of the pipe between the two as your spray port...

Have the whole thing seal into the back of the stock (you might need to put a pipe in there), and that way you wouldn't need to unscrew the back each time - simply working the bolt action would open it up for you to spray into. And when you close it up, the O-rings would seal against the inside of the space in the stock.
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Does that thing kinda look like a big cat to you?
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Unread postAuthor: Gun Freak » Sat Aug 07, 2010 2:52 pm

I like that idea! Definitely would speed up the fueling and shooting process... even better, auto propane injection and venting :D
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Unread postAuthor: spudrouge420 » Sun Aug 08, 2010 5:40 am

If you want to see details of the bsr's operation check out ...http://www.youtube.com/watch?v=tnnbcmTH0pc the idea for this came from a mix of the barret 50 and the 50 cal construction manual. here are some better pics.
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Unread postAuthor: cfb_rolley » Sun Sep 05, 2010 5:09 am

wow nice job! that is definately the best spray and pray i have ever seen too. hope you don't mind, but this gives me some serious inspiration and motivation for me to build an advanced combustion similar-ish to this
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Unread postAuthor: jackssmirkingrevenge » Sun Sep 05, 2010 5:15 am

I had missed this, very well put together. I second the suggestion for proper metering though, and surely after what you've accomplished it would be worth fitting an extractor that pops the shell out after firing...
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