Peterson Cartridge Unprimed Rifle Brass Features Peterson Cartridge builds its Unprimed Rifle Brass in .340 WBY Mag to a match grade standard maintained through every step of manufacturing from small batch production to final quality control inspection. This level of consistency matters most in magnum rifle cartridges like the .340 Weatherby where case uniformity directly affects pressure consistency and accuracy at extended ranges. The brass is unprimed and sized for large rifle primers giving reloaders full control over their priming and load development process. Reloadable construction means each case can be used for multiple firing and resizing cycles when properly maintained. Shooters chasing tight groups at long range depend on brass that holds consistent dimensions and case capacity from one piece to the next which is exactly the standard Peterson Cartridge targets with its match grade process. This 50 count box gives handloaders enough brass to work up a load and build a working supply for hunting or long range competition. Because the brass is sold unprimed it pairs with the reloader s primer powder and bullet selection of choice for a fully custom load. Peterson Cartridge has built its reputation on this exacting approach making it a trusted choice among precision rifle reloaders. Peterson Cartridge Unprimed Rifle Brass Specifications Manufacturer: Peterson Cartridge Model: Unprimed Rifle Brass Type: Reloading Brass Caliber: .340 WBY Material: Brass Primer Size: Large Rifle Reloadable: Yes Count: 50 Available At: GrabAGun