6.5×50mmSR Arisaka
Japanese military rifle cartridge / From Wikipedia, the free encyclopedia
The 6.5×50mmSR Arisaka (designated as the 6,5 × 51 R (Arisaka) by the C.I.P.[1]) is a semi-rimmed rifle cartridge with a 6.705 mm (.264 in) diameter bullet. It was the standard Japanese military cartridge from 1897 until the late 1930s for service rifles and machine guns when it was gradually replaced by the 7.7×58mm Arisaka.
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Quick Facts Type, Place of origin ...
6.5×50 Arisaka | ||||||||
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6.5×50mmSR Arisaka (center) with .303 British (left) and .30-06 (right). | ||||||||
Type | Rifle cartridge | |||||||
Place of origin | Empire of Japan | |||||||
Service history | ||||||||
Used by | Empire of Japan, Russian Empire, United Kingdom, China, North Korea, South Korea, Thailand, Finland, Indonesia, Cambodia, Poland | |||||||
Wars | Russo-Japanese War, World War I, Second Sino-Japanese War, World War II, Indonesian War of Independence, Korean War, Malayan Emergency | |||||||
Production history | ||||||||
Produced | 1897–1945 | |||||||
Specifications | ||||||||
Case type | Semi-rimmed, bottleneck | |||||||
Bullet diameter | 6.63 mm (0.261 in) | |||||||
Land diameter | 6.33 mm (0.249 in)[citation needed] | |||||||
Neck diameter | 7.37 mm (0.290 in) | |||||||
Shoulder diameter | 10.40 mm (0.409 in) | |||||||
Base diameter | 11.45 mm (0.451 in) | |||||||
Rim diameter | 12.08 mm (0.476 in) | |||||||
Rim thickness | 1.143 mm (0.0450 in) | |||||||
Case length | 51.00 mm (2.008 in) | |||||||
Overall length | 76.00 mm (2.992 in) | |||||||
Case capacity | 3 cm3 (46 gr H2O) | |||||||
Rifling twist | 1/9 inches | |||||||
Primer type | Large rifle | |||||||
Maximum pressure (C.I.P.) | 295.0 MPa (42,790 psi) | |||||||
Ballistic performance | ||||||||
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Test barrel length: 800 mm |
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