MIL-C-13743A (NOTICE-1), MILITARY SPECIFICATION: CORE, STEEL, HARDENED, FOR ARMOR PIERCING TYPES OF SMALL ARMS AMMUNITION (21-MAY-1987)
MIL-C-13743A (NOTICE-1), MILITARY SPECIFICATION: CORE, STEEL, HARDENED, FOR ARMOR PIERCING TYPES OF SMALL ARMS AMMUNITION (21-MAY-1987).