The A937532 Sierra Bullets Outdoor Master series showcases a fusion of innovative components and manufacturing technologies, providing an economic cartridge that is versatile for all applications. The product assures substantial terminal performance impact.These cartridges are specifically designed for magazine length, ensuring seamless and consistent feeding in an AR platform. Additionally, the cartridges are loaded with brass casings. This not only guarantees longevity but also makes it convenient and cost-effective when reloading with ordinary equipment.Please be informed that this ammunition utilizes military-grade primers and is most effective when used in AR-15s. To reload, the primer pockets need to be either reamed or swaged. The product specifications consist of 223 Rem 55 GR Hollow Point Boat-Tail (HPBT) with packaging of 20 per box /10 Cs.