Peterson Cartridge is a family-owned, American manufacturer of match-grade, brass rifle casings and loaded ammunition that is among the most precise and consistent on the market, delivering discerning long-distance shooters sub-MOA accuracy. Peterson brass casings are manufactured using a state-of-the-art case line that uses cutting-edge technology to produce some of the most consistently precise casings available. Every Peterson brass casing goes through a 16 step manufacturing process that is heavily monitored to ensure that every Peterson casing meets the standards required of their customers. The end of Peterson’s manufacturing and inspection process results in a product that provides two things every serious reloader needs during load development: accuracy and precision. Peterson brass is designed, produced, and tested by shooters for shooters in the USA. Peterson Brass Peterson .243 Winchester Standard Rifle Primer Casings Box of 50 40007R