.577/500 Nitro Express

The .577/500 3⅛-inch Nitro Express is a British centerfire fire rifle cartridge.

.577/500 Nitro Express
TypeRifle
Place of originUnited Kingdom
Specifications
Case typeRimmed, bottleneck
Bullet diameter.508 in (12.9 mm)
Neck diameter.526 in (13.4 mm)
Shoulder diameter.585 in (14.9 mm)
Base diameter.645 in (16.4 mm)
Rim diameter.717 in (18.2 mm)
Rim thickness.055 in (1.4 mm)
Case length3.13 in (80 mm)
Overall length3.74 in (95 mm)
Rifling twist1:16
Primer type.251 (6.38 mm) Berdan (Kynoch #31A)
Ballistic performance
Bullet mass/type Velocity Energy
440 gr (29 g) 1,725 ft/s (526 m/s) 2,920 ft⋅lbf (3,960 J)
Source(s): "Cartridges of the World" [1]

Development

The .577/500 NE was developed by loading a 3⅛-inch variant of the .577/500 Black Powder Express with smokeless cordite. The latter was developed by necking down the .577 Black Powder Express to .508".[2]

Whilst very similar to the .577/500 No 2 Black Powder Express the two are not interchangeable.[1]

Use

Despite being a similar size, the .577/500 NE is not nearly as powerful as the .500 Nitro Express and is not suitable for such thick-skinned game as elephant. Like the .500 Black Powder Express, the .577/500 NE was never highly regarded for hunting in Africa, yet it was popular in India.[1]

Moderately popular in its day, the round has long since ceased to be offered commercially.

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See also

References

Footnotes
  1. Barnes.
  2. Wieland.

Bibliography
  • Barnes, Frank C, Cartridges of the World, ed 13, Gun Digest Books, Iola, 2012, ISBN 9781440230592.
  • Wieland, Terry, Nitro Express: The Big Bang of the Big Bang, retrieved 20 Jun 16.
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