Master Sgt. Julia Carlson relays the signal that the line is ready to fire at the Reserve Combat Marksmanship Coaches Course, Oct. 24, 2014 at Weapons Training Battalion in Quantico, Va. Carlson, a marksmanship instructor and competitive shooter with the Marine Corps Reserve Shooting Team, is one of only four women in civilian and military competitive shooting history that is double-distinguished with both the rifle and pistol.