So far off to a good start then!

Sorry, I thought that asking experienced people for a well drawn out set of plans to follow would be alot safer than guessing but ok!

Im not intending on shooting anything living with it, I have a .303 rifle for that.

My bad on the measurement, I meant to say I ...

Hey all, Im a would be first time cannon maker.

Some friends and I have been talking about making a cannon forever so I figure its time to actually start putting something together to scare the neighbours.

Im looking for a VERY simple plan for something powerfull, thinking propane or LPG? Also if ...