The Winchester X22LRSS1 SuperX 22LR 40 GR LRN 100 Rounds is a high-performance rimfire cartridge designed for accuracy and reliability. With its lead round nose bullet, this ammunition delivers consistent results in various shooting applications. The 40 grain weight provides a good balance between penetration and expansion. This product features fast shipping, so you can get your hands on it quickly. The Super-X brand has a reputation for producing high-quality ammunition that meets the needs of discerning shooters. Whether you're a seasoned hunter or a recreational shooter, this cartridge is an affordable option that won't break the bank. Product Features and Specifications: Caliber: 22 LR Bullet Type: Lead Round Nose (LDRN) Bullet Weight: 40 GR Muzzle Energy: 150 ft lbs Muzzle Velocity: 1300 fps Casing Material: Brass Rounds Per Box: 100