.270 British: Difference between revisions
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{{Cite book |
{{Cite book |
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| last = Popenker, Maxim |
| last = Popenker, Maxim |
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| last2 = Williams, Anthony G. |
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| authorlink = http://www.amazon.com/Assault-Rifle-Maxim-Popenker/dp/1861267002 |
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| year = 2005 |
| year = 2005 |
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| title = Assault Rifle |
| title = Assault Rifle |
Revision as of 06:59, 29 June 2014
.270 British | ||||||||
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Typ | Rifle | |||||||
Place of origin | Vereinigtes Königreich | |||||||
Production history | ||||||||
Designed | post-WWII | |||||||
Specifications | ||||||||
Bullet diameter | 7.04 mm (0.277 in) | |||||||
Rim diameter | 11.3 mm (0.44 in) | |||||||
Case length | 46 mm (1.8 in) | |||||||
Overall length | 62.3 mm (2.45 in) | |||||||
Ballistic performance | ||||||||
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The .270 British (or .270 Enfield) is an experimental intermediate rifle cartridge that was developed by the British at the same time as the .280 British as a potential successor to the .303 British cartridge.[1] The rimless cartridge has a base diameter of 11.3 mm (like the Russian 7.62×39mm) and a case length of 46 mm.[2] The bullet is a standard .270/.277 caliber bullet with a light 100 gr weight with a muzzle velocity of 840 m/s (2,800 ft/s). It was not good at long range, but its slender case had the potential to fire a heavier bullet at a relatively high velocity. It was optimized for shorter ranges, while the .280 favored long-range performance to try to meet U.S. requirements.
The cartridge was not adopted, the British initially focused development on the .280, then ultimately chose the NATO-standard 7.62x51 cartridge.
References
Popenker, Maxim; Williams, Anthony G. (2005). Assault Rifle. Crowood. ISBN 978-1861267009.