Peterson Cartridge Unprimed Rifle Brass Features Peterson Cartridge Unprimed Rifle Brass is manufactured to a match-grade standard the company holds across its entire production process from small batch runs through final quality control inspection. Each .22 Creedmoor case is built from brass and designed specifically around a small rifle primer pocket giving handloaders a consistent starting point for developing precision loads. The small flash hole measures 0.060 inches in diameter noticeably smaller than the 0.080 inch flash hole found on Peterson s large rifle primer cases. Reloaders working with this SRP brass will need an undersized or extra-small decapping pin to properly deprime the cases. Consistency from case to case is the entire point of match-grade brass and Peterson s quality control process is built to deliver exactly that across every batch produced. This unprimed rifle brass is a reloading component only intended for handloaders who prime charge and seat their own bullets rather than shooters seeking ready-to-fire ammunition. The 50-count box gives reloaders a manageable batch size for load development and testing before committing to larger production runs. Precision-minded .22 Creedmoor shooters looking to maintain match-grade accuracy all the way to the target can find this Peterson brass for sale at GrabAGun. Peterson Cartridge Unprimed Rifle Brass Specifications Manufacturer: Peterson Cartridge Model: Unprimed Rifle Brass Caliber: .22 Creedmoor Primer Size Type: Small Rifle Material: Brass Reloadable Case: Yes Rounds Per Box: 50 Available At: GrabAGun