Dragoons assigned to 1st Squadron, 2d Cavalry Regiment participate in a live-fire exercise at Grafenwoehr Training Area near Rose Barracks, Germany, in March 2015. Troopers conducted group and tactical movements while attacking an objective, assisted by Strykers and mortar fire. The Army will always need small caliber ammunition, but eliminating brass for shell casings in favor of a lighter material could significantly reduce the load that Soldiers must carry. (U.S. Army photo by SGT William A. Tanner)