L.E. Wilson Minimum Chamber Gauge Brass 300 AAC Blackout

The L.E. Wilson Minimum Chamber Gauge is made with the same tight tolerances you have come to expect from all your Wilson Tools. Best used if you are loading ammo to work in multiple gun chambers of the same caliber. Wilson recommends using this in conjunction with the Regular Case Gage to prevent over-sizing. Gage verifies Min Chamber Dimensions and OAL for SAAMI. The purpose of this gage is to check your reloaded rounds to see if they meet Min Chamber Specs. Therefore, if your rounds do not en