Streak visual ammunitions exclusive and patented technology allows the shooter to visually see the projectiles path towards its target.Streak rounds are non-incendiary, meaning they don't generate heat and thus are safe to use in environments where traditional tracers are prohibited and can be a serious fire hazard.For indoor range use and nighttime shooting.Caliber: 38 SpecialBullet Type: Total Metal Case (TMC)Bullet Weight: 125 grMuzzle Energy: 249 ft lbsMuzzle Velocity: 947 fpsRounds Per Box: 20Boxes Per Case: 10Application: TargetCasing Material: BrassHazair: Yes