Master Sgt. Julia Carlson advises Lance Cpl. Troy Saur, a student at the Reserve Combat Marksmanship Coaches Course, on how to correct a shooter’s position, 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.