Peterson Cartridge Unprimed Rifle Brass Features Peterson Cartridge brass is manufactured to a match-grade standard maintained from small batch production lines through quality control and on to the reloader s bench. This 6mm Creedmoor brass is designed specifically for small rifle primers featuring a flash hole measuring 0.060 inches in diameter smaller than the 0.080-inch flash hole found on Peterson s large rifle primer brass. Reloaders working with this brass need an x-small or undersized decapping pin to properly deprime the cases a detail worth noting before beginning a reloading session. Tight consistency in case dimensions and flash hole sizing supports more uniform ignition and pressure across every round loaded. Sold in a 500-count box this brass gives handloaders a substantial supply for developing loads running load workup tests or stocking up for extended shooting seasons. Peterson s manufacturing philosophy centers on maintaining the same standard of consistency all the way from the production floor to the target a standard reloaders depend on for repeatable accuracy. As unprimed brass this product requires the reloader to add their own primers propellant and projectiles to complete a finished cartridge. For 6mm Creedmoor shooters focused on extracting every bit of precision from their rifle this Peterson brass provides the quality starting point serious handloading demands. Peterson Cartridge Unprimed Rifle Brass Specifications Manufacturer: Peterson Cartridge Caliber: 6mm Creedmoor Primer Size: Small Rifle Reloadable: Yes Count: 500-Count Available At: GrabAGun