Lyman Pro Ammo Checker Features The Lyman Pro Ammo Checker is precision machined from stainless steel to minimum SAAMI chamber tolerances ensuring that any cartridge passing through the gauge will chamber properly in a correctly spec d .45-70 firearm. This tool gives reloaders a quick visual and physical pass or fail check rather than relying on measurement alone. Because it is clearly marked for .45-70 Government there is no ambiguity about which caliber it is intended to check. The gauge functions as a final safeguard against oversized or improperly sized cases before ammunition ever reaches the field or range. Stainless steel construction resists corrosion from repeated handling and storage in a reloading bench environment over years of use. The simple drop in testing method requires no tools or complicated setup making it fast to incorporate into an existing reloading workflow. Competitive shooters in particular benefit from this extra step since a single bad chambering round can cost valuable time during a match. For any reloader loading .45-70 ammunition for hunting or competition the Lyman Pro Ammo Checker adds confidence for sale at GrabAGun. Lyman Pro Ammo Checker Specifications Manufacturer: Lyman Model: Pro Ammo Checker Caliber: .45-70 Gov Diameter: .458 Material: Stainless Steel Count: 1 Warranty: Mfg Limited Lifetime Available At: GrabAGun