Forgotten Weapons on MSN

How the US built a water-cooled .50-caliber heavy machine gun

Before the Browning M2, there was a series of Colt commercial .50 caliber machine guns. The .50 BMG (12.7x99mm) cartridge began development in 1918, and after the end of the war Colt and John Browning ...
Yahoo

A century of the ‘Ma Deuce’: How the M2 Browning became America’s workhorse machine gun

Add Yahoo as a preferred source to see more of our stories on Google. For over a century the M2 Browning .50-caliber machine gun, known affectionally among troops as “Ma Deuce,” has been the staple ...