The quiet-22 load is ideal for bolt-action and single-shot rifles, and generates 75 percent less perceived noise than standard-velocity 22 long rifle rounds.It is perfect for areas where noise may be a problem and is ideal for introducing newcomers to shooting sports.Caliber: 22 LRBullet Type: Lead Round Nose (LRN)Bullet Weight: 45 grMuzzle Energy: 53 ft lbsMuzzle Velocity: 735 fpsCasing Material: BrassRounds Per Box: 50Boxes Per Case: 100Hazair: Yes