TEST FIRE U.S. Army Staff Sgt. Jason Loomis photographs 155 mm artillery rounds impacting on a nearby hillside at Combat Outpost Cherkatah, Khowst province, Afghanistan, Nov. 26, 2009. The artillery was fired by U.S. forces from Forward Operating Base Salerno during a test fire. SHARE: Download: Full Size (0.06 MB) Credit: VIRIN: 977721-V-GIU08-469.jpg Photo Gallery