Producing modern bullets is primitive technology, compared to any modern manufacturing process. Lots of normal gun owners do it at home to save money. Granted t

Producing modern bullets is primitive technology, compared to any modern manufacturing process. Lots of normal gun owners do it at home to save money. Granted they usually buy the powder, bullets, and primer separately but it’s not like they are microprocessors or something. The cartridge can be re-used. Gunpowder made of three elements that are widely available. The lead bullet is one of the easiest materials to find and work with, lead is a low temperature metal used for thousands of years; you can cast the stuff in a literal campfire. The one part you might have a hard time with is the primer, but you can stock up on those or use a black powder rifle and flint (Look up successful attempts to make the Gorn gun)