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.475 Nitro Express

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Type
  
Rifle

Bullet diameter
  
.476 in (12.1 mm)

Shoulder diameter
  
.502 in (12.8 mm)

Place of origin
  
Britain

Neck diameter
  
.502 in (12.8 mm)

Base diameter
  
.545 in (13.8 mm)

The .475 Nitro Express is a British rifle cartridge developed in the early 20th century.

Contents

Design

The .475 Nitro Express is a slightly tapered, non-bottlenecked rimmed cartridge very similar in appearance to the .450 Nitro Express, that is designed for use in single-shot and double rifles.

Original loadings fired a 480 gr (31 g) projectile at a listed speed of 2,175 ft/s (663 m/s), these loadings are still available, additionally Westley Richards have a 500 gr (32 g) loading with a listed speed of 2,125 ft/s (648 m/s).

History

It is believed the .475 Nitro Express was introduced around 1900, well before the British Army 1907 ban of .450 caliber ammunition into India and the Sudan which saw the development of the ballistically very similar .500/465 Nitro Express, .470 Nitro Express, .475 No 2 Nitro Express, and .476 Nitro Express.

Firearms historians remain unclear who developed the .475 Nitro Express, it is likely that a combination of companies going out of business and merging, along with records being lost or destroyed during the London blitz will mean the origins of this cartridge will never be known.

The .475 Nitro Express has never enjoyed the success of any of the cartridges listed above, largely because it was never adopted by any of the major rifle manufacturers. Due to this, rifles in this calibre have always been rare, generally from lesser known makers such as Army & Navy and Manton of Calcutta.

Use

The .475 Nitro Express is considered a good large-bore round, suitable for all big game, its power is very similar to the .470 Nitro Express. Ballistically it is almost identical to the .450 Nitro Express, with a larger diameter bullet; whether this is an advantage remains in dispute.

References

.475 Nitro Express Wikipedia


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