thanks for that. didnt mean to lecture anyone ;)

let it be noted that although i trust my workmanship (except maybe i can go for glueing lessons) i NEVER stand behind my cannon. :0

im busy building (almost finished) a pneumatic cannon. used pressure rated parts, but its very expensive. more than ...

by non pw parts i assume you mean non-pressure rated?
if so, then i doesn't really matter cos this is a combustion cannon. the pressures reached are far lower than pneumatic and therefore you dont really need high pressure parts.
Up till now i've had no real problems except for the a section of the ...

link to video of breech action

thanks for the comments. i've added some more pics and explanations of the breech design. busy uploading a quick vid i made of the breech action. i'll post the link as soon as its done

Hey guys
just joined. this is my second attempt at a first post. the first one "disappeared" so if this appears twice, please forgive me.

I built this baby 'bout a year ago. It was my first attempt ever at anything like this and i must say the bug has caught. I'm currently workin on a
pneumatic ...