FORT ROBINSON STATE PARK, Neb. - Sgt. Brent Miller, a forward observer and rider of the Fort Carson Mounted Color Guard, assigned to Company A, Division Special Troops Battalion, 4th Infantry Division, hits his target as his horse, Sgt. Lefty, leaps over an obstacle during the Mounted Pistols Competition Sept. 24 at Fort Robinson State Park Arena, Neb. Miller used a replica 19th Century revolver and is wearing the uniform of an 1870s U.S. Army Cavalryman, representing The Mountain Post at the 2009 National Calvary Competition.