Cartridge Gauges

Gauges and checking tools

Gauges verify that cartridges and cases meet caliber specifications before they reach the firearm. The collection includes Armanov, Dillon Precision, and Double Alpha Academy multi-hole ammo checkers, Forster go and no-go headspace gauges for chamber verification, Lyman case length headspace gauges, and Hornady tools.

How to choose

• Ammo checker: checks the diameter and length of finished cartridges; multi-hole models speed up lot verification for competitions.
• Headspace gauge: go and no-go gauges verify chamber headspace and should be used with proper procedures or by a gunsmith.
• Caliber: every gauge is specific to a caliber.