These 5.45x39mm Cartridges characteristic cleanse-burning Berdan primers, Comprehensive Metal Jacket (FMJ) projectiles, and cost-saving steel casings which might be coated with a lightweight film of polymer. The polymer coating safeguards the steel cases from rust even though in storage and also serves as a buffer in between casings and chamber https://tacticalrounds.com/product-category/best-rifle-ammo/30-06-springfield-ammo/