Reloaders know Winchester understands the demands of shooters and hunters wanting to develop the "perfect load." You can rest - and reload - assured that every Winchester ammunition component is made to meet and exceed the most demanding requirements and performance standards in the world: Yours. Symbol: WSC338WMU Caliber: 338 Winchester Magnum Unprimed Rifle Shell Cases Quantity per Bag: 50 Note: This is a reloading compenent of Unprimed Brass. This is not Ammunition. Manufactures Website Address www.winchester.com Warranty Information Warranted against manufacturers defects.