Captive bolt guns for stunning
Captive bolt guns, also known as stunners or stun guns, are devices for stunning animals. A replaceable explosive cartridge forces the bolt forward out of the device and into the animal's head. The bolt remains anchored in the stunning device, so that there is no question of shooting a projectile. It is not actually the bolt that stuns the animal but rather the wave of pressure caused by the bolt's rapid forward motion.