Peterson Cartridge Unprimed Rifle Brass Features The Peterson Cartridge Unprimed Rifle Brass is manufactured from quality brass and formed specifically for the 7mm RUM cartridge giving magnum rifle handloaders a dependable starting point for their loads. Each case accepts a large rifle primer matching the pressure and ignition demands of this high-velocity magnum chambering. Peterson builds these cases to be reloadable allowing shooters to resize and reuse brass across multiple firing cycles when properly maintained. Reloadable brass of this quality helps extend case life and keeps load development more consistent from batch to batch. Match-grade quality runs through Peterson s entire manufacturing process from small batch production lines through a dedicated quality control department before the brass reaches a customer s bench. This 50-count box gives handloaders enough cases to develop and test a load without committing to a bulk purchase. Reloaders working up magnum loads for long-range hunting or competition shooting benefit from the dimensional consistency this brass provides. For 7mm RUM shooters chasing tighter groups and repeatable velocities this unprimed brass is a solid foundation for precision handloading. Peterson Cartridge Unprimed Rifle Brass Specifications Manufacturer: Peterson Cartridge Model: Unprimed Rifle Brass Caliber: 7mm RUM Material: Brass Primer Size: Large Rifle Reloadable: Yes Rounds Per Box: 50 Available At: GrabAGun