SIG SAUER Rifle Brass .300 Winchester Magnum Non-Primed 50 Brass/Bag. These casings are rigorously tested to ensure unparalleled durability and dependability. Each casing undergoes numerous in-line and postproduction quality assurance testing to ensure a flawless reloading case. Specifications for SIG SAUER .300 Winchester Magnum Non-Primed Rifle Brass: Manufacturer: SIG SAUER Gun Type: Rifle Caliber: .300 Winchester Magnum Primed: No Fabric/Material: Brass Brass Quantity: 50 Piece Package Type: Bag Package Contents: SIG SAUER .300 Winchester Magnum Non-Primed Rifle Brass SIG SAUER Infinite Guarantee SIG SAUER BR2033: Rifle Brass .300 Winchester Magnum Non-Primed 50 Brass/Bag