Keywords: US Navy 020930-N-1159M-003 A Sailor loads a .50 caliber machine gun during a training exercise aboard the Abraham Lincoln.jpg en At sea aboard USS Abraham Lincoln CVN 72 Sep 30 2002 -- A Sailor loads a 50 caliber machine gun during a training exercise aboard the Abraham Lincoln The 50 caliber machine gun is an automatic recoil operated air-cooled machine gun with adjustable headspace and is crew transportable with limited amounts of ammunition over short distances By repositioning some of the component parts ammunition may be fed from either the left or right side This gun which may be mounted on ground mounts has a maximum effective range of 2000 meters a maximum range of 4 22 miles 6 8 kilometers and a cyclic rate of fire of 550 rounds per minute Abraham Lincoln is on a regularly scheduled deployment conducting combat missions in support of Operation Enduring Freedom U S Navy photo by Photographer's Mate 3rd Class Daniel J Mark RELEASED 2002-09-30 020930-N-1159M-003 Navy http //www navy mil/view_image asp id 2841 U S Navy photo by Photographer's Mate 3rd Class Daniel J Mark PD-USGov-Military-Navy Aboard USS Abraham Lincoln CVN-72 Browning M2 of the US Navy |