Peterson Cartridge Unprimed Rifle Brass Features Peterson Cartridge built its reputation on a standard called Match-Grade a quality bar the company holds throughout the entire manufacturing process of its rifle brass. Every .270 WSM case passes through multiple quality inspections before leaving the factory a process designed to catch inconsistencies that could affect accuracy or case life downstream. An annealed mouth and neck on each case helps regulate the brass hardness in the area that experiences the most stress during firing and resizing which can extend usable case life across multiple reloading cycles. This attention to detail starts on Peterson s small batch production lines and carries through its dedicated quality control department. Each case in this box is beautifully polished reflecting the finish standard reloaders have come to expect from premium brass manufacturers. Sized for a large rifle primer this unprimed brass gives handloaders full control over their primer selection to tune a load to their specific .270 WSM rifle. Made entirely in the United States Peterson s brass production emphasizes consistency from batch to batch which matters significantly to reloaders chasing repeatable accuracy. For .270 WSM shooters building match grade ammunition this 50 count box of unprimed rifle brass offers a trusted foundation to start from. Peterson Cartridge Unprimed Rifle Brass Specifications Manufacturer: Peterson Cartridge Caliber: .270 WSM Material: Brass Rounds Per Box: 50 Primer Size: Large Rifle Available At: GrabAGun