Keywords: US Navy 110926-N-KB052-108 The Mk-45 5-inch .54-caliber gun is fired from the forecastle during a pre-action calibration live-fire exercise aboard.jpg en PACIFIC OCEAN Sept 26 2011 The Mk-45 5-inch 54-caliber gun is fired from the forecastle during a pre-action calibration live-fire exercise aboard the Ticonderoga-class guided-missile cruiser USS Cowpens CG 63 Cowpens is forward deployed to Yokosuka Japan and is underway in the U S 7th Fleet area of responsibility U S Navy photo by Mass Communication Specialist 1st Class N Ross Taylor/Released 2011-09-26 110926-N-KB052-108 Navy http //www navy mil/view_image asp id 108043 U S Navy photo by Mass Communication Specialist 1st Class N Ross Taylor PD-USGov-Military-Navy Aboard USS Cowpens CG-63 5 /54 caliber Mark 45 gun firing |