Illustration of the M2 .50 Cal. Browning Machine Gun with Heavy Barrel. (U.S. War Department Technical Manual.)
Tag - .50 cal.
An armorer loads ammunition in the guns in the nose of a P-38 Lightning fighter. (U.S. Air Force Photograph.)
A 15th Air Force armorer loads ammunition belts for the .50 caliber machine guns in the wings of a P-51 Mustang fighter plane before the fighter leaves an Italian air base for a mission against Axis targets, September 1944. (U.S...