Product Description Winchester USA centerfire rifle ammunition is built for reliable training and extended range sessions, delivering positive functioning and good accuracy. This .223 Remington load features a 45-grain jacketed hollow point projectile in a brass case, offered in 40-round boxes and commonly packaged 10 boxes per case for convenient stocking. Product Highlights .223 Remington 45-grain jacketed hollow point load for centerfire rifle use Designed for consistent performance during training, practice, and range time Brass-case ammunition supports reliable feeding and extraction High-velocity loading (listed 3600 fps) for flat-shooting performance Value-packed 40-round box; 10-box case packaging for bulk purchase convenience Specs Brand: Winchester Ammo Model/Line: USA Cartridge: .223 Remington Bullet Weight: 45 grain Bullet Type: Jacketed Hollow Point (JHP) Case Material: Brass Rounds Per Box: 40 Case Pack: 10 boxes per case (400 rounds total) Muzzle Velocity: 3600 fps (listed) Muzzle Energy: 1295 ft-lbs (listed) Country of Manufacture: USA (as marked on packaging) Manufacturer Part Number: USA2232 UPC: 020892212411 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 products manufacturer.