Cowboy Mounted Shooting is the Fastest Growing Equestrian Sport in the Nation. Mounted contestants compete in this fast action timed event using two .45 caliber single action revolvers each loaded with five rounds of black powder blank ammunition. The Cowboy Mounted Shooting Association has a variety of levels of competition for everyone, ranging from novice levels to the seasoned professional, so you are always competing with other shooters at your own level.  For more information about the sport and complete official rules visit the website for the Cowboy Mounted Shooting Association (CMSA).