wow. i never really thought of building a copper coax before. cool gun.

you're right. i think i might actually fix it now cuz i dont want to die next time i shoot this thing.

yea. ive never had PVC break, but ive heard some crazy stories. thanks for the heads up though

oh no. i think i might just leave it because i never take it over 100psi and its hasnt broken yet. you're right though, i really should fix it.

sorry this is off topic, but im a noob and dont know where to post this. How do you get a thumbnail image to upload properly. i keep just getting an x when i try to upload it.

Wait just one minute! HOW could the sealing face possibly hit you in the head?????? The face can't get behind the piston and go out through the pilot, so it either stays in the gun, or flys out the barrel when it detaches... surely you didn't look down the barrel... and fire it.. :shock:

it ...

i had that same problem. the sealing face of one of my previous pistons came off when i shot it and it hit me in the face

umm no. it epoxy putty. after i finished it there was a small leak there but now its fine.

ehh. its ok. thanks though

yea. its really meant to be held by your hip but it is a little different

This is my first working piston cannon and my first post on spudfiles. :D

I usually only pump this up to around 90 - 100psi and i made two barrels.
- 1 1/4" potato barrel - 2" sleeved into 2"PVC (golfball barrel)

Specs:
- 2" chamber
- modded sprinkler valve (pilot valve)
- plywood piston (i got ...