Lyman Single Caliber Ammo Checker Cartridge Gauge

Machined aluminum cartridge gauge for .223 Rem caliber.

Ammo Checkers are gauges that verify the quality and consistency of both reloaded and factory ammo.
They are machined from solid aluminum and cut with custom tooling to SAAMI minimum chamber tolerances.
Just drop your cartridge into the gauge and if it fits, it will chamber in your gun.