WEAPONS QUALIFICATION A burst of flames leaps from the barrel of a .50-caliber machine gun during a security team weapons qualification on the fantail of the Nimitz-class aircraft carrier USS Harry S. Truman, in the Atlantic Ocean, Jan. 17, 2007. SHARE: Download: Full Size (0.04 MB) Credit: VIRIN: 910051-W-XYQ53-279.jpg Photo Gallery