U.S. Army Chief Warrant Officer Thomas Spicer, assigned to Headquarters & Headquarters Company, Special Troops Battalion, 7th Sustainment Brigade, winds up a roll of string using a mechanical spooling device during a test fire of .45 caliber modified pistol ammunition at Fort Eustis, Va., Feb. 13, 2013. The ammunition must be tested before being equipped on vessels throughout the Army watercraft field. (U.S. Army photo by Sgt. Edwin Rodriguez/Released)