This is 22LR Winchester M22 40gr. Black Copper Plated Round Nose. Specifically designed for modern sporting rifles with high capacity magazines. This realistic tactical training load is perfect for practice, plinking, or target shooting. Highly accurate, sure functioning in high capacity magazines. Plated for reduced fouling and enhanced functioning. Consistent, sure-fire ignition. This ammo has a muzzle velocity of 1255 fps, it comes packed in 500rd. boxes.