.470 Nitro Express
The .470 Nitro Express is a rifle cartridge developed by Joseph Lang in England for dangerous game hunting in Africa and India. This cartridge is used almost exclusively in double rifles. It is in wide use in the Southern and Central-East African region, favoured by hunting guides, primarily while out for hunting Cape buffalo and elephant.
| Type | Rifle | |||||||
|---|---|---|---|---|---|---|---|---|
| Place of origin | England | |||||||
| Production history | ||||||||
| Designer | Joseph Lang | |||||||
| Designed | 1907 | |||||||
| Produced | 1907–present | |||||||
| Specifications | ||||||||
| Parent case | .500 Nitro Express 3+1⁄4 in | |||||||
| Case type | Rimmed, bottlenecked | |||||||
| Bullet diameter | .474 in (12.0 mm) | |||||||
| Land diameter | .467 in (11.9 mm) | |||||||
| Neck diameter | .504 in (12.8 mm) | |||||||
| Shoulder diameter | .531 in (13.5 mm) | |||||||
| Base diameter | .573 in (14.6 mm) | |||||||
| Rim diameter | .655 in (16.6 mm) | |||||||
| Rim thickness | .040 in (1.0 mm) | |||||||
| Case length | 3.25 in (83 mm) | |||||||
| Overall length | 3.98 in (101 mm) | |||||||
| Case capacity | 146.0 gr H2O (9.46 cm3) | |||||||
| Rifling twist | 1-20 in | |||||||
| Primer type | Boxer | |||||||
| Maximum pressure | 39,160 psi (270.0 MPa) | |||||||
| Maximum CUP | 35,000 CUP | |||||||
| Ballistic performance | ||||||||
| ||||||||
| Source(s): "Cartridges of the World" | ||||||||
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