First shot
First shot or barrel heater describes the first shot of a firearm .
The first shot of a weapon usually takes place after a weapon has been manufactured during a test in which the proper functioning and dimensional accuracy of a firearm is checked. The first shot can be taken as part of an inspection by the manufacturer's fire department or in the fire department . Special knowledge of these processes has led to the introduction of special pre-treatments for weapon barrels such as the autofrettage .
In addition, the term first shot is a translation of the Anglo-American term cold bore shot , which is used as a collective term for physical processes that result from shots from cold and warm gun barrels (also known as pipes) and are examined as part of internal ballistics . The shorter range is caused on the one hand by the higher frictional resistance of a cold and thus narrower pipe and by the energy losses of the combustion gases when the pipe is heated. It is known that these processes lead to differences in the external ballistic results of the firearms .
For precision shooting is on the background of this knowledge, the result of the first shot of a shot series that begins with a cold run, not for evaluation for the zeroing used on a target. With snipers , artillerymen and similar professional groups, the connections to deviations from the first shot are known. Therefore, if the necessity due to a special deviation of a firearm is known and the possibility of doing so is given, a shot is fired without evaluation before the targeted use of the firearm. In the hunting sector, this option is usually not available, which requires hunters to have precise knowledge of the behavior of the hunting firearm with regard to the first shot (not to be confused with the oil shot, which is usually to be avoided outside of military conflicts) in order to be able to Bring wild clean shots.
In the case of weapons used for military purposes, first shot refers to the introduction of a weapon into the relevant military units, in which the first shot is taken by these units.
Individual evidence
- ^ Rheinmetall: Waffentechnisches Handbuch 1985, p. 79
- ^ Ian Hogg: Artillery of the 20th Century . 1st edition, page 7, Gondromverlag, Bindlach 2001, ISBN 3-8112-1878-6