.320 Revolver
| .320 Revolver | ||||||||
|---|---|---|---|---|---|---|---|---|
| Type | Revolver | |||||||
| Place of origin | United Kingdom | |||||||
| Production history | ||||||||
| Produced | 1870s | |||||||
| Specifications | ||||||||
| Bullet diameter | .3170 in (8.05 mm) | |||||||
| Neck diameter | .3200 in (8.13 mm) | |||||||
| Base diameter | .3220 in (8.18 mm) | |||||||
| Rim diameter | .3500 in (8.89 mm) | |||||||
| Case length | .6200 in (15.75 mm) | |||||||
| Overall length | .9000 in (22.86 mm) | |||||||
| Rifling twist | 1 turn in 22 in (560 mm) | |||||||
| Primer type | Berdan | |||||||
| Ballistic performance | ||||||||
| ||||||||
| Source(s): Cartridges of the World - 8th Edition (1997), Frank C. Barnes, page 245 | ||||||||
Also known as the .320 European or .320 Bulldog, this revolver cartridge was designed for the Webley Bull Dog pocket revolver in the 1870s. The .32 Short Colt was based on the .320 but had a different sized rim. On some guns the Short Colt will actually fit and cycle properly. However, modern .32 Colt ammunition should never be used in a black-powder firearm. Reloading using reliable published data and a black-powder substitute like Pyrodex can be safe and successful.
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