Clearing a Machine Gun An Army reservist waits for a range safety officer to clear her M240B machine gun while zeroing during Operation Cold Steel at Fort McCoy, Wis., March 13, 2017. Army Reserve photo by Staff Sgt. Debralee Best SHARE: Download: Full Size (1.73 MB) Tags: reserves, Soldiers, Army, training Credit: Staff Sgt. Debralee Best VIRIN: 170313-A-FW423-468A.JPG Photo Gallery