Thank you for responding. my barrel is around 2-2 1/2 feet long. Also i have a ball valve.
I finished it and it works fairly well.

It's just ran off of compressed air, and it's schd. 40 pipe. Thanks!

edit: tested the spud gun today, and it works like a charm !!!!! next im gonna make some better ammo from tennis balls or something.

I am new to this forum, but have been around forums for a while so I will try not to make any mistakes. I have a few questions, one of which is more an opinion probably. 1. whats the best type of ammo besides potatos, as they probably are not as effecient and effective as some ammo choices. 2. what ...

I am new to potato guns and almost have my first completely. I only need a 4" to 3" pvc schd. 40 adapter. 1. whats a decent barrel length for a beginner spud gun ran off of compressed air? 2. is it better to go straight from a bigger chamber (like 4 inch pvc pipe) directly to a 2 inch barrel? in my ...