This 5.56 NATO ammunition offers a caliber of 22 with a bullet diameter of 0.224 inches ideal for precision and reliability. Each round features a 55-grain Full Metal Jacket Boat Tail (FMJBT) bullet designed for reduced drag and improved accuracy over long distances. Whether you're engaging in target shooting or training this ammo provides consistent performance. Packaged in a bulk box of 500 projectiles it's an excellent choice for shooters who demand both quality and quantity. Caution: These are just the projectiles not the whole round