This Winchester USA centerfire rifle ammo is the ideal choice for training or extended sessions at the range and provides several features such as no expansion, positive functioning, good accuracy, and no barrel leading. This Value Pack comes with 150 rounds/box. About Winchester Considered one of the world's leading ammunition manufacturers, Winchester has built its reputation on delivering innovative ammunition products, providing top-shelf customer service and demonstrating industry leadership. SKU W223150 Manufacturer Winchester Casing Type Brass Bullet Profile Full Metal Jacket (FMJ) Bullet Weight 55 Gr Caliber 223 Remington Velocity AVG 3240 FPS