Ensure proper case dimensions for safety & reliability Lyman maximum cartridge gauges check all critical dimensions of pistol ammunition to insure proper functioning. These precision made gauges allow the reloader to check the case length, diameter and overall cartridge length of pistol ammunition. This inspection is considered mandatory by top competitive shooters who demand 100% reliability for their competition ammo. Protect yourself and your firearms with Lyman's Pistol Maximum Cartridge Gauges. Order today!Specifications and Features: Lyman 7832336 .44 Remington Magnum One piece non-adjustable cylinder gauge Checks headspace, case length, diameter and loaded cartridge length Stainless steel