Peterson Cartridge .338 Winchester Magnum Long Rifle Brass 250 Piece. Match-Grade is a standard that must be held throughout the entire process of manufacturing some of the most consistent accurate and durable brass rifle casings available today. From the small batch production lines to the quality control department to your bench and on to the range. Match-grade is the standard that Peterson Cartridge strives to achieve so that the customers can maintain that standard all the way to the target. Specifications for Peterson Cartridge .338 Winchester Magnum Long Rifle Brass: Manufacturer: Peterson Cartridge Gun Type: Rifle Caliber: .338 Winchester Magnum Height: 4 in Package Contents: Peterson Cartridge .338 Winchester Magnum Long Rifle Brass Peterson Cartridge 40086-P: .338 Winchester Magnum Long Rifle Brass 250 Piece