Lyman Ammo Checker Single Caliber 7mm Rem Mag - 7833013

This Lyman Ammo Checker is a precision aluminum gauge machined to SAAMI minimum chamber tolerances for verifying quality and consistency of both reloaded and factory ammunition. Simply drop a cartridge into the gauge to confirm it will chamber in your firearm. Sized specifically for 7mm Rem Mag with .284" diameter specifications.