I just came out of a YouTube rabbit hole. This guy totally breaks down the working mechanisms of big arty, AAA, MG's and even late 19th century torpedoes. Maybe other things I didn't see...I had no idea the Armstrong cannon ever existed. It being a muzzleloader, and me not finding any posts in a search of the forum, I thought I would share. I'm sure you cannon guys knew all about it, but it blew my mind!!