Load up with the legendary Super-X ammunition from Winchester , ammunition made with the same skill, care and quality as when first introduced in 1922. Today Super-X is made using precise manufacturing processes and the highest quality components to provide consistent, dependable performance that generations of shooters continue to rely upon. The Super-X Super Speed .22 caliber LR round features a 40 grain Lead Round Nose bullet with Lubaloy plating. This round features Super Speed velocity, delivering a muzzle velocity of 1300 fps. 100 rounds per box. Features: Super-X – Consistent, dependable performance 40-grain, Lubaloy-plated Lead Round Nose bullet Super Speed Velocity – 1300 fps muzzle velocity 100 rounds Manufacturer model #:X22LRSS1.