Measuresthroat erosion for .30-06 caliber 03/A3, Win. M-70 and Rem. 40-X rifles, and .300 Win. Mag. caliber Win. M-70 and Rem. 40-X rifles. Mfg: Ara- Mor SPECS: Steel, 2 1/2" long.
Centers and supports your cleaning rod close to the rifle's muzzle. Taper machined to provide an exact fit inside the flash suppressors on M14/M1A Match Rifles. Mfg: Ara- Mor SPECS: Aluminum 3-5/8" (9.2cm) long. Max. rod diameter: .260".
Gives accurate, comparative readings on actual barrel throat erosion for all M1, M14 and M1A .30-06 and 7.62mm Nato, High Power Service Rifles. Insert in empty chamber and take reading every 1,000 rounds to accurately measure and track barrel throat erosion....