The Hornady .300 RCM Unprimed Rifle Cartridge Cases offer an exceptionally uniform and premium structural foundation for precision handloaders developing custom ammunition for the .300 Ruger Compact Magnum platform. Manufactured in small, specialized lots under rigid quality control standards, this high-grade rifle brass ensures excellent case-to-case consistency in internal volume, weight, and wall dimensions. Every case features precision-measured tight wall concentricity to minimize bullet runout and guarantee an ideal chamber fit, facilitating a clean, identical projectile release upon ignition. To withstand demanding short-action magnum pressures, Hornady subjects this component brass to rigorous pressure calibration testing to promote completely uniform case expansion during firing. Packaged as a loose component box of 50 unprimed brass cases, this American-made product features a standard Large Rifle primer pocket profile to give backcountry hunters and precision target shooters total command over their ignition properties. Hornady .300 RCM Unprimed Rifle Cartridge Cases Box of 50 Rounds 86721