Coax Barrel As

Cannons powered by pneumatic pressure (compressed gas) using a valve or other release.
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elitesniper
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Hey guys witch barrel so you think is more ideal in a 2'' sch 40 chamber for a coax a sch 40 3/4 or a sch 40 1''? im going for the one with most power out of that chamber space so witch one do you think guys?
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bigbob12345
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I would say 3/4 in but only if you extend it out of the chamber a lot. make it long but 1in would work fine too
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elitesniper
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so witch do you tihnk would be stronger?
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bigbob12345
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3/4in if you made the barrel long but 1in if you dont want a very long barrel eighther will work.And if gonna use 3/4in use 3/4in cpvc so you can shoot paintballs.
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elitesniper
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nah i gotta use 3/4 sch40 b :idea: because im shooting 8g and 12g co2 cartridges
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bigbob12345
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Okay that sounds good just make the barrel long or you will see a power decrease because 3/4in is Quite a small size for a 2in chamber but it will allow more volume in the chamber that useing 1in will.
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elitesniper
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about how much longer should i do it? the chamber is 38 inches long how long should the barrel be ? for the 3/4
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bigbob12345
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Well 100ft long wouyld give a perfect 0.2:1 ratio but a 5ft long barrel would work just fine.
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elitesniper
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100ft??? :shock:
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bigbob12345
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Yep 100ft but you dont at all need a barrel that long although I am very tempted to attempt this I wonder what kind of power Id get.
Great now all I need is 100 feet of 3/4in pvc :D
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