stunner

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stunner

device used in abattoirs to stun an animal so that it is unconscious when it is bled out.

concussion stunner
a captive-bolt, nonpenetrating device, activated by a standard bullet. The explosion drives a mushroom-shaped head out of the handheld pistol which has been placed against the animal's forehead. Has the same effect as a hammer blow but is less subject to error or danger.
electrical stunner
see electrical stunning.
penetrating captive-bolt stunner
the bolt that is driven out of the pistol (see concussion stunner above) is a 0.5 inch diameter rod which penetrates the skull bones and lacerates the brain.
pneumatic stunner
a penetrating captive-bolt unit (see above) in which the power is compressed air. Has problems when the compressor is not functioning.
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