Peterson Cartridge Unprimed Rifle Brass Features The Peterson Cartridge unprimed rifle brass in 7mm STW Long is produced to a match-grade standard that Peterson holds throughout its entire manufacturing process. Each case passes through multiple quality inspections on the production line a step intended to catch inconsistencies before they ever reach a reloader s bench. The mouth and neck of every case are annealed a process that softens the brass in that area to extend case life and promote more consistent neck tension across firings. A beautifully polished finish on each case reflects the attention to detail Peterson applies from small batch production through final quality control. Made entirely in the United States this brass is intended for reloaders who want their match-grade consistency to carry all the way from the production line to the target. Being unprimed the brass requires the reloader to seat their own primer giving full control over the components used in each load. This 50-count box provides a manageable quantity for handloaders working up or refining a 7mm STW Long load. For long-range and precision shooters chambered in 7mm STW Peterson Cartridge brass offers a dependable starting point for building accurate ammunition. Peterson Cartridge Unprimed Rifle Brass Specifications Manufacturer: Peterson Cartridge Caliber: 7mm STW Long Material: Brass Primer Size: Large Rifle Rounds Per Box: 50 Reloadable: Yes Available At: GrabAGun