@D00B @Coyote @WashedOutGundamPilot @bitcoin @mystik This is blackpowder, which is much weaker and dirtier than modern smokeless powder. It will work well for your flintlock muskets though. For anything more modern, including ball and cap and blackpowder cartridge you need primer, which is fairly dangerous to make.
@ForbiddenDreamer @Coyote @D00B @bitcoin @WashedOutGundamPilot @mystik I believe that those are only rimfire primers and that you have to reshape them. I know I heard of a guy doing that, but what's the point? 22 is still cheap, just buy a couple thousand rounds if you're really worried. If they try to ban 22 you'll probably only be able to get pneumatic nail guns.