Designed for personal defense, the Liberty Ammunition Civil Defense 10mm 60-Grain Centerfire Handgun Ammunition features nickel-plated copper hollow-point bullets in nickel-plated brass cartridge cases. 770 ft.-lb. muzzle energy. 2,400 fps muzzle velocity. Liberty Ammunition Civil Defense 10mm 60-Grain Centerfire Handgun Ammunition - Pistol Shells at Academy Sports