.256 Gibbs Magnum
Type of obsolete rifle cartridge
From Wikipedia, the free encyclopedia
The .256 Gibbs Magnum is an obsolete rimless bottleneck centerfire rifle cartridge developed by George Gibbs of Bristol and introduced in 1913.
TypeRifle
PlaceoforiginEngland
DesignerGeorge Gibbs of Bristol
Designed1913
| .256 Gibbs Magnum | ||||||||
|---|---|---|---|---|---|---|---|---|
| Type | Rifle | |||||||
| Place of origin | England | |||||||
| Production history | ||||||||
| Designer | George Gibbs of Bristol | |||||||
| Designed | 1913 | |||||||
| Produced | 1913âpresent | |||||||
| Specifications | ||||||||
| Parent case | 6.5Ã57mm Mauser | |||||||
| Case type | Rimless, bottleneck | |||||||
| Bullet diameter | .264 in (6.7 mm) | |||||||
| Neck diameter | .292 in (7.4 mm) | |||||||
| Shoulder diameter | .430 in (10.9 mm) | |||||||
| Base diameter | .471 in (12.0 mm) | |||||||
| Rim diameter | .474 in (12.0 mm) | |||||||
| Case length | 2.17 in (55 mm) | |||||||
| Overall length | 3.09 in (78 mm) | |||||||
| Ballistic performance | ||||||||
| ||||||||
| Source: Cartridges of the world.[1] | ||||||||
Overview
The .256 Gibbs Magnum was designed and introduced by George Gibbs in 1913 for use in their own Mauser style sporting rifles. The cartridge was created by reducing the neck of the 6.5Ã57mm Mauser by 2 mm.[1]
The .256 Gibbs Magnum is very similar to, but not interchangeable with, the 6.5Ã55mm Swedish cartridge.[1]
One famous user of the .256 Gibbs Magnum was Denis D. Lyell who used a rifle in this calibre for hunting in Africa.[2]
