Design advice, would this work?

[jackssmirkingrevenge]

Personally I wasn't too impressed by the 3/4" combustions I had built. You really need big bores to see the effect.

How about downloading HGDT and getting some performance estimates?

http://www.thehalls-in-bfe.com/HGDT/

[vng21092]

Yea I was reading some debates over combustion vs pneumatic and for the most part pneumatics win in terms of performance for smaller cannons. I just wanted to make combustion because I've already made a marble pneumatic.

[BowerR64]

Personally I wasn't too impressed by the 3/4" combustions I had built. You really need big bores to see the effect.

How about downloading HGDT and getting some performance estimates?

http://www.thehalls-in-bfe.com/HGDT/

It would if you used bangsite and water. 1" tee with a 3/4" barrel starts to sound like a real gun being fired. I havnt done any tests on velocity because i could care less about that.

Ive never really put anything solid in my pistols. The cannons on the other hand i have

[vng21092]

I've read that using carbide was bad for PVC as it form acetylene no?

[jackssmirkingrevenge]

BowerR64 clearly knows what he's doing, but in general the use of carbide cannons is frowned up on the forum as being potentially unsafe.