U.S. Navy Petty Officer 2nd Class Terrance Davis, assigned to the guided missile destroyer USS Mitscher (DDG 57), loads a MK-38 machine gun while underway in the Atlantic Ocean on Oct 26, 2010. The Mitscher is part of the George H.W. Bush (CVN 77) Carrier Strike Group that is participating in a sink exercise, a weapons system test involving a torpedo or missile attack of an unmanned target ship.