The Lyman Aluminum Handgun Ammo Checker is an essential tool for ensuring your ammunition is up to standard. Crafted from durable 6061 T6 aircraft-grade aluminum this checker is designed to quickly and efficiently measure cases for quality and consistency. Suitable for handgun calibers ranging from .380 to .45 it features caliber engravings for easy identification. With the capacity to check eight cartridges at a time it offers a reliable way to confirm that your rounds will fit perfectly in your firearm's chamber.