Lyman Ammo Checker .450 Bushmaster Aluminum - 7833026

The Lyman Ammo Checker is a precision aluminum gauge machined to SAAMI minimum chamber tolerances for .450 Bushmaster cartridges. It verifies the quality and consistency of both reloaded and factory ammunition by allowing you to physically test-fit rounds before shooting. Simply drop a cartridge into the gauge; if it fits, the round will chamber safely in your firearm.