Pistol brass is arguably the most important single component of a reloading casing. This small but significant component makes up the casing of a loaded round and is necessary for reloading. However, most people don't think beyond the casing of a loaded round and consider loading the casing of a loaded round. Whereas this is the case for a reloading casing, a prime casing is what brings a casing to a cartridge's terminal performance. For this reason Sig Sauer produces both primed and unprimed brass. But both are extremely important for reloaders to consider when deciding what brass to use for reloading.Specifications:Manufacturer: SIG SAUERGun Type: RifleCartridge: .243 WinchesterPrimed: NoFabric/Material: BrassBrass Quantity: 50 PiecePackage Type: Bag