U.S. Coast Guard Petty Officer 1st Class Alexander Hall observes an M240B machine gun prior to conducting a gunnery exercise (GUNNEX) onboard Coast Guard Cutter Bertholf (WMSL 750), July 9, 2025. The GUNNEX consists of firing both the M240B and M2A1 machine guns at a smoke target that has been placed in the water near Bertholf. (U.S. Coast Guard photo by Petty Officer 3rd Class Avery Tibbets)