Premium unprimed brass cases for 300 RUM reloading. Peterson delivers consistent quality and reliable performance for precision rifle ammunition handloading.
Peterson Cartridge has earned a reputation for producing some of the finest brass cases available to serious reloaders. These unprimed cases are manufactured to exacting standards, ensuring consistent dimensions and reliable performance across every round you load.
Superior Quality Control Each case is carefully inspected and processed to deliver uniform wall thickness, consistent case capacity, and precise tolerances. This consistency translates directly into more predictable ballistics and tighter shot groups.
Built for Precision The 300 Remington Ultra Magnum is a powerful long-range cartridge that demands quality components. Peterson brass provides the reliability and consistency that precision shooters depend on, whether you're developing loads for hunting or competition.
These cases are ideal for handloaders who demand consistency and reliability. Whether you're fine-tuning loads for a custom rifle or preparing ammunition for long-range hunting, Peterson brass provides the foundation for quality ammunition.