Howitzer boom
FIRE! U.S. Army Sgt. Ryan Skelton (left) of Denver, Co., and Staff Sgt. Elvis Servellon of Omaha, Neb. - both with the Fort Jackson Salute Battery - fire an M116 Howitzer during a retirement ceremony for Brig. Gen. Janice M. Haigler, deputy commanding general of the 335th Signal Command (Theater), at Fort Jackson, S.C., July 16, 2016. (U.S. Army photo by Staff Sgt. Ken Scar)