When in need use Remington UMC Centerfire Handgun Ammunition. If you are in a high-volume shooting situation this is the ammo for you. It provides great value without having to compromise any performance or quality. The case mouth and the primer are all waterproofed which offers you maximum reliability. All of the cases are plated in nickel so that you reduce oxidation improve your feeding and improve your extraction. Each bullet is specially treated with powders to reduce muzzle flash each time you shoot.