Practice Rounds Marine Corps Capt. Timothy Brown fires a machine gun from the back of a CH-53K King Stallion helicopter during a training exercise over the Chocolate Mountain Aerial Gunnery Range in California, April 13, 2023. SHARE: Download: Full Size (8.43 MB) Tags: marine corps Credit: Marine Corps Lance Cpl. Gideon M. Schippers VIRIN: 230413-M-PP322-2774.JPG Photo Gallery