Product Description Winchester Unprimed Rifle Brass cases are engineered to precise tolerances for dependable function and consistent performance in your reloading workflow. Designed for .300 Blackout, these unprimed brass shellcases help promote smooth-feeding and positive chambering. Packaged 100 per bag, they&';re ideal for reloaders looking to stock up on quality cartridge cases for training, competition, or hunting applications. Product Highlights Winchester unprimed rifle brass engineered to precise tolerances for reliable chambering Designed for .300 Blackout / .300 AAC Blackout reloading Brass case construction for durability and consistent resizing performance 100-piece bag for convenient bulk reloading Unprimed cases allow you to select your preferred primers and load data Specs Brand Name: Winchester Ammo Manufacturer Part Number: WSC300BLKU UPC: 020892633506 Cartridge/Caliber: .300 Blackout (.300 AAC Blackout) Primed: No (Unprimed) Case Material: Brass Quantity: 100 cases per bag Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product&';s manufacturer.