Hornady Lock-N-Load 338 ARC Cartridge Gauge - Hornady Lock-N-Load Cartridge Gauges allow the user to check their ammo to ensure a correct fit in SAAMI chambers. Cut to SAAMI maximum tolerances, these gauges will ensure your ammo will fit into any correctly cut chamber. Made in the USA ; Material - Steel; Cartridge - 338 ARC; - At Sportsman's Warehouse, we live for the thrill of the great outdoors. Whether you're hunting, fishing, camping, backpacking, or shooting, having the right gear is key to making every moment unforgettable. That's why we bring you only the highest quality, trusted brands-because your outdoor experiences deserve the best. From expert advice to quality gear and community events, Sportsman's Warehouse is more than a store-we're your partner on every journey. Come explore with us and experience the difference passion makes.