5mm Bergmann
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5mm Bergmann
| 5mm Bergmann | ||
|---|---|---|
| Type | Pistol | |
| Place of origin |  Germany |
|
| Production history | ||
| Designer | Bergmann | |
| Produced | 1895 | |
| Specifications | ||
| Bullet diameter | .2 in (5.1 mm) | |
| Ballistic performance | ||
| Bullet weight/type | Velocity | Energy |
| 35 gr (2.3 g) FMJ | 580 ft/s (180 m/s) | 26 ft·lbf (35 J) |
| 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
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