5mm Bergmann
5mm Bergmann |
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Type |
Pistol |
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Place of origin |
Germany |
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Production history |
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Designer |
Bergmann |
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Produced |
1895 |
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Specifications |
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Bullet diameter |
.2 in (5.1 mm) |
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Ballistic performance |
Bullet weight/type |
Velocity |
Energy |
35 gr (2 g) FMJ |
580 ft/s (180 m/s) |
26 ft·lbf (35 J) |
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Source(s): "Textbook of Automatic Pistols" [1] |
The 5mm Bergmann is an unusual centerfire cartridge produced for very early self-loading pocket pistols. The case is steeply conical and headspaces on the conical case walls. Early versions (sometimes called the 5 mm Bergmann Rimless) were made without any rim or extraction groove; and relied upon blow-back for expulsion of the fired case from the chamber. Later Bergmann pistols provided an extractor requiring a groove which produced a semi-rimmed case. The long bullet was inadequately stabilized and tended to tumble in flight.[1]
References
- ↑ 1.0 1.1
- Wilson, R. K. Textbook of Automatic Pistols, pp.259-260. Plantersville, SC: Small Arms Technical Publishing Company, 1943.