PETERSON CARTRIDGE 338 WINCHESTER MAGNUM BRASS The Peterson Cartridge 338 Winchester Magnum Brass is built for reloaders who demand exceptional precision, durability, and long-term consistency from their components. Manufactured in the USA under Peterson's strict match-grade standards, this brass delivers outstanding dimensional uniformity, consistent internal volume, and superior case strength. Each case is meticulously formed and heat-treated to ensure reliable performance across multiple reload cycles. Whether you're developing high-energy hunting loads or fine-tuning long-range precision rounds, Peterson's 338 Win Mag brass provides the stable, high-qual Mfg: Peterson Cartridge