Hornady Cartridge Gauge Features The Hornady Cartridge Gauge is machined to SAAMI maximum tolerances for the 7mm PRC cartridge giving reloaders a dependable reference for verifying case length and headspace before loading a batch of ammunition. This precision tool catches oversized or improperly resized cases that could cause chambering problems in the field saving handloaders from a frustrating range day. Its simple design lets shooters quickly drop a case or loaded round into the gauge and visually confirm proper fit against SAAMI specifications. Consistent correctly sized ammunition is critical to both accuracy and reliable function in bolt-action rifles chambered in 7mm PRC. Built from durable material designed to hold its tolerances over repeated use this gauge is a practical addition to any 7mm PRC reloading bench. Hornady s Lock-N-Load line of cartridge gauges is trusted by handloaders for straightforward no-fuss quality control on finished ammunition. Using a gauge like this one helps reloaders catch problems before they reach the range protecting both the shooter s time and their rifle s chamber. For any reloader working with 7mm PRC brass this Hornady gauge is a smart low-cost investment in consistency. Hornady Cartridge Gauge Specifications Manufacturer: Hornady Model: Cartridge Gauge Type: Case Length / Headspace Gauge Caliber: 7mm PRC Diameter: .284 Color: Silver Available At: GrabAGun