Peterson Cartridge Unprimed Rifle Brass Features The Peterson Cartridge Unprimed Rifle Brass for .300 WBY is manufactured to a match grade standard a designation Peterson holds across its entire production process rather than applying only to a premium tier. The brass is reloadable giving shooters the ability to run it through multiple firing and resizing cycles while maintaining consistent case dimensions. Large rifle primer pockets are sized for standard large rifle primers keeping the reloader within normal component sourcing. This consistency from piece to piece is what lets a reloader maintain tight accuracy standards across an entire batch of ammunition. Peterson s small batch production approach allows closer quality control than mass production lines typically achieve which matters most for long range rifle calibers like .300 WBY where small variances compound at distance. Each box contains 50 pieces giving the reloader enough brass to establish a load and still have material left to fine tune it. Because this brass ships unprimed it is intended strictly as a reloading component and not as loaded ammunition. For rifle reloaders chasing match grade consistency in .300 WBY Peterson Cartridge brass offers a trusted foundation to build a load around. Peterson Cartridge Unprimed Rifle Brass Specifications Manufacturer: Peterson Cartridge Caliber: .300 WBY Material: Brass Firearm Type: Rifle Primer Size: Large Rifle Reloadable: Yes Rounds Per Box: 50 Available At: GrabAGun