Super Suppressed ammunition is optimized for firearms equipped with suppressors. Offering clean and reliable performance, the Super Suppressed line is engineered for noise reduction, decreased barrel/suppressor fouling and recoil mitigation. Consistent performance and exceptional accuracy is backed by generations of Winchester legendary excellence. Specifications and Features:Caliber: 22 LRBullet Type: Black Copper Plated Round NoseBullet Weight: 45 grMuzzle Energy: 119 ft IbsMuzzle Velocity: 1090 fpsCasing Material: BrassRounds Per Box: 100Boxes Per Case: 20