Peterson Cartridge Unprimed Rifle Brass Features The Peterson Cartridge Unprimed Rifle Brass in .300 WSM is produced to a match grade standard that Peterson applies across its entire manufacturing process. Small batch production lines allow tighter control over case dimensions and wall consistency than high volume mass production methods typically achieve. A dedicated quality control department inspects the brass before it ships helping ensure uniformity from case to case within the 250 count box. That consistency is exactly what long range and precision shooters need when chasing repeatable ignition and seating depth. Each case is built to accept a large rifle primer and is fully reloadable letting handloaders prime charge and seat bullets to their own load specifications. Reloading with unprimed brass gives shooters complete control over primer selection and seating depth both of which influence ignition consistency and accuracy. Peterson s stated goal is that match grade quality carries through from their bench all the way to the target and starting with consistent brass is the foundation of that process. This Peterson Cartridge .300 WSM brass is intended for reloaders only and is available for sale at GrabAGun. Peterson Cartridge Unprimed Rifle Brass Specifications Manufacturer: Peterson Cartridge Model: Unprimed Rifle Brass Caliber: .300 WSM Primer Size Type: Large Rifle Reloadable Case: Yes Rounds Per Box: 250 Available At: GrabAGun