PTG Throat Erosion Gauge 224 Caliber

Accuracy can be greatly affected by throat erosion. Quickly and easily check the wear of your service rifle throat with this simple tool. The gauge simply slides into the chamber and a reading is taken at the rear of the barrel. New barrels should register at zero, while barrels too worn for service use will register past the last mark. Notes:The gauge is used to see the relative change in a chamber's throat by measuring the throat when the rifle is new or when gauge is first used, then comparin