One Cartridge, not a Box! : 50 BMG AP (Armor Piecing) by Fabrica de Municiones “Frey Luis de Beltran”, Bhorgi, or ábrica Militar “Fray Luís Beltran, San Lorenzo, Argentina. Using then new brass cases with the metric designation for 50 BMG on the head-stamp “12.7×99 08FLB 85″, loaded with a Armor Piecing projectile and a 3 crimp primer.
History of the .50 BMG cartridge:This is one of the most successful military cartridges of all time. This cartridge was invented in 1918 by John Browning, the .50 BMG, also known as the 50 Browning for the 50 Browning Machine Gun. Also known as the 12.7x99mm in Europe, has been used extensively in almost every U.S.A. conflict since its adoption in 1923.Adopted by the U.S. Military in 1923 the .50 BMG has been used longer than any other cartridge in military history. (Note: The .45 ACP is actually older, but was technically superseded.) Technically the .50 BMG is the biggest cartridge available to shooters without encumbrance legal restrictions.
