yea, a 3inch bore is about what i'm looking for. Filling soup cans with cement is pretty fun to shoot as well.

no, the University of Toledo in the great state of Ohio.

golf balls seem like a good projectile but I don't feel like buying them and I was looking to fire something a bit larger.

ok, thanks alot for the advice and sorry if the questions got a little annoying. Oh and I didn't through it off a 15ft cliff it slid off my barn loft.

is using a ball valve as a firing mechanism instead of a sprinkler valve a big differnece?

OK, do you know a good link for plans on how to build a piston pneumatic. Oh, and what's the most effective barrel - air chamber volume ratio.

A few years ago I really became interested in pneumatic spud guns. I made a pretty decent basic gun but the barrel broke when it fell 15ft. Anyways the gun already had little flaws with it and now I'm looking for ideas for a fairly simple and durable pneumatic spud gun that can preferably launch a ...