Petty Officer 3rd Class Meghan Schnurr prepares .50-caliber ammunition for a live-fire exercise. U.S. Navy Petty Officer 3rd Class Meghan Schnurr prepares .50-caliber ammunition for a live-fire exercise aboard the aircraft carrier USS Nimitz (CVN 68) in the Pacific Ocean on Aug. 5, 2009. The Nimitz and embarked Carrier Air Wing 11 are underway on a deployment to the western Pacific. SHARE: Download: Full Size (0.03 MB) Credit: VIRIN: 487968-W-JGM71-100.jpg Photo Gallery