7.62×53mmR
Finnish rifle cartridge / From Wikipedia, the free encyclopedia
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The 7.62×53mmR (also known as the 7.6×53R Finnish) rifle cartridge is a Finnish design based on the Russian 7.62×54mmR round dating back to 1891.
Quick Facts Type, Place of origin ...
7.62×53mmR | ||||||||
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Type | Rifle | |||||||
Place of origin | Finland | |||||||
Service history | ||||||||
In service | 1918–present | |||||||
Used by | Finland | |||||||
Production history | ||||||||
Designed | 1918 | |||||||
Produced | 1918–present | |||||||
Specifications | ||||||||
Parent case | 7.62×54mmR | |||||||
Case type | Rimmed, necked | |||||||
Bullet diameter | 7.85 mm (0.309 in) | |||||||
Land diameter | 7.59 mm (0.299 in) | |||||||
Neck diameter | 8.55 mm (0.337 in) | |||||||
Shoulder diameter | 11.61 mm (0.457 in) | |||||||
Base diameter | 12.42 mm (0.489 in) | |||||||
Rim diameter | 14.40 mm (0.567 in) | |||||||
Rim thickness | 1.60 mm (0.063 in) | |||||||
Case length | 53.50 mm (2.106 in) | |||||||
Overall length | 77.00 mm (3.031 in) | |||||||
Case capacity | 4.16 cm3 (64.2 gr H2O) | |||||||
Rifling twist | 300 mm (1 in 11.81 in) | |||||||
Primer type | Berdan | |||||||
Maximum pressure | 390.00 MPa (56,565 psi) | |||||||
Ballistic performance | ||||||||
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