7.62×53mmR
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.
| 7.62×53mmR | ||||||||
|---|---|---|---|---|---|---|---|---|
7.62×53mmR cartridges | ||||||||
| 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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