torsoialake- I get your drift, the thing has been around for quite some time in its current state. Even so, my original question still stands.
As a kid I once knocked a hole in the side of a live .5″ round with a nail. I then poured the cordite out and burnt it. In my defence I was young and stupid. For protection I wore two (yes, you read that right, two!) parkas back to front and an old full-face motorcycle helmet with the world’s most scratched visor. To deal with the percussion cap we tried shooting it with an air-rifle. We were rubbish shots and got nowhere. Back into the vice went the cartridge and my friends Mr Hammer and Mr Nail were called back to help out. I’m NEVER going to do that again. Not even wearing three parkas.