U.S. Marines perform maneuver-at-speed reloads during Enhanced Mojave Viper, a training exercise at range 107 on Marine Corps Base Twentynine Palms, Calif., July 7, 2010. U.S. Marines perform maneuver-at-speed reloads during Enhanced Mojave Viper, a training exercise at range 107 on Marine Corps Base Twentynine Palms, Calif., July 7, 2010. SHARE: Download: Full Size (3.43 MB) Tags: Photo Essays Credit: VIRIN: 907420-Y-ASP55-713.jpg Photo Gallery