Plastic Case Crack Cartridges Projection distance before detonation is approximately 60 meters. Time lapse from firing to detonation is approximately 3-5 seconds. Creates a loud bang sound effect. Can be launched from OLIN pistol, Heckler & Koch Signal Pistol and Pocket Launcher. WARNING:Plastic case crack cartidges may pre-detonate when launched, if stored or used in extreme hot or cold conditions, or are subjected to vibration. 6 cartridges per package.