Product DescriptionPeterson Cartridge .300 Remington Ultra Magnum brass rifle casings are designed for reloaders who want match-grade consistency, durability, and precision. Manufactured to Peterson Cartridge standards, these brass cases are built to support accurate ammunition assembly for demanding range and field use. This configuration is chambered for .300 RUM and is offered in a convenient 50-count retail box, making it a strong choice for reloaders seeking premium brass for serious rifle loading applications.Product Highlights Match-grade .300 Remington Ultra Magnum brass cases engineered for consistent reloading performance. Premium brass construction designed for durability and dependable case life. Ideal for precision-minded reloaders building custom rifle ammunition. 50-count retail box provides a convenient quantity for bench and range preparation. Manufactured by Peterson Cartridge, a trusted name in high-quality rifle brass casings. Specs Product Type: Brass rifle casings Caliber: .300 RUM (.300 Remington Ultra Magnum) Case Material: Brass Priming: Unprimed Pack Quantity: 50 cases Packaging: Retail box Package Dimensions: 4.20 x 4.15 x 7.10 in Package Weight: 2.69 lb UPC: 810068270501 MPN: 40070-R Brand: PETERSON CARTRIDGE Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product&';s manufacturer.