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The 6.5mm Bergmann is an unusual centerfire cartridge produced for very early self-loading pocket pistols.
| 6.5mm Bergmann | ||||||||
|---|---|---|---|---|---|---|---|---|
 Bergmann model 1896 in 6.5 caliber | ||||||||
| Type | Pistol | |||||||
| Place of origin | German Empire | |||||||
| Production history | ||||||||
| Designer | Bergmann | |||||||
| Produced | 1895 | |||||||
| Specifications | ||||||||
| Case type | semi-rimmed | |||||||
| Bullet diameter | .26 in (6.6 mm) | |||||||
| Neck diameter | .285 in (7.2 mm) | |||||||
| Shoulder diameter | .330 in (8.4 mm) | |||||||
| Base diameter | .368 in (9.3 mm) | |||||||
| Rim diameter | .372 in (9.4 mm) | |||||||
| Case length | .870 in (22.1 mm) | |||||||
| Overall length | 1.230 in (31.2 mm) | |||||||
| Ballistic performance | ||||||||
| ||||||||
| Source(s): "Textbook of Automatic Pistols" [1] | ||||||||
Design
editThe case is bottle-necked and steeply conical, and headspaces on the conical case walls. Early versions 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.[1]
See also
editReferences
edit
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