So with barrel markings
Bore diameter
Chamber Cast
Cartridge length
and maybe a case in the gun trap
Lots can be done to discover the proper
cartridge for any gun.

If you have a gun that needs cartridge identification
take a road trip and come up here and we will do that
and I just may have the dies needed to make some ammo.

Mike


USAF RET 1971-95 [Linked Image from jpgbox.com]