US Navy 101027-N-3374C-032 The guided-missile cruiser USS Gettysburg (CG 64) fires its aft 5-inch Mark 45-54-caliber lightweight gun at the ex-USNS

ATLANTIC OCEAN (Oct. 27, 2010) The guided-missile cruiser USS Gettysburg (CG 64) fires its aft 5-inch Mark 45/54-caliber lightweight gun at the ex-USNS Saturn during a sinking exercise. Gettysburg and other ships assigned to the George H.W. Bush Carrier Strike Group fired live ammunition at Saturn. (U.S. Navy photo by Mass Communication Specialist 3rd Class Tony Curtis/Released)