My father in law happened into an original 50-70 trapdoor carbine. I'm pretty sure he wants me to load some ammo for it at some point. What mold would be closest to the original bullet? What do I need to know about loading BP in cartridge guns other than the bullet should compress the charge?
He's also got an original 1887 Winchester in 12 gauge. From what little I know about them, none of the 12 gauges were made late enough to be safe with smokeless. Can anyone enlighten me on this?