Marines operate an M240B medium machine gun Oct. 22

Marines operate an M240B medium machine gun Oct. 22 during the Air Naval Gunfire Liaison Company Basic Course on Camp Schwab. The M240B operates at a maximum rate of sustained fire of 100 rounds per minute, the rapid rate of fire is 200 rounds per minute, and the cyclic rate of fire is 650-950 rounds per minute. During rapid fire, the barrel should be changed every two minutes. The Marines trained to keep up their basic infantry skills and improve upon them. The Marines are with 5th ANGLICO, III Marine Expeditionary Force Headquarters Group, III MEF. (U.S. Marine Corps photo by Lance Cpl. Tyler S. Giguere/Released)