i am going to use 1" abs for the barrel and chambers tbarrel will be 1m long and chambers also 1m long

would a chamber volume double the volume of the barrel be good or do i need more?

MrCrowley wrote:http://www.spudfiles.com/forums/ammo-ideas-t1724.html

I have no idea what you'd use for ABS, just go with PVC, it easier.

what do u mean, you could use the same projectiles.

ABS if pressure rated is better for compressed air systems because over time pvc can become brittle and explode, but abs splits... so unless you want to risk having plastic shrapnel stuck in your eye ABS is the best plastic.

would would you recommend a 3/4 inch abs pipe for shhoting paintballs or a 1" abs barrel

that is one massive barreled cannon, i don't think mine will be quite that long lol.

Redcoat wrote:well as they say longer is better to make it practical I'd say about 50-60 cm.
(you might need a bipod or monopod )

how much does the barrel length affect the muzzle velocity (longer barrel = higher velocity, correct me if i'm wrong)

hi, i am making a pnuematic "sniper" cannon and i was wondering what barrel length to use. the barrel is going to be 1" ABS pipe and it can't be too long.