6.5×54mm Mannlicher–Schönauer
| 6.5×54mm Mannlicher–Schönauer | ||||||||||||||||||||
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Austrian military cartridge from 1908. | ||||||||||||||||||||
| Type | Rifle | |||||||||||||||||||
| Place of origin | Austria-Hungary | |||||||||||||||||||
| Specifications | ||||||||||||||||||||
| Parent case | 6.5×53mmR | |||||||||||||||||||
| Case type | Rimless, bottleneck | |||||||||||||||||||
| Bullet diameter | 6.70 mm (0.264 in) | |||||||||||||||||||
| Land diameter | 6.50 mm (0.256 in) | |||||||||||||||||||
| Neck diameter | 7.56 mm (0.298 in) | |||||||||||||||||||
| Shoulder diameter | 10.87 mm (0.428 in) | |||||||||||||||||||
| Base diameter | 11.47 mm (0.452 in) | |||||||||||||||||||
| Rim diameter | 11.52 mm (0.454 in) | |||||||||||||||||||
| Case length | 57.20 mm (2.252 in) | |||||||||||||||||||
| Overall length | 77.80 mm (3.063 in) | |||||||||||||||||||
| Case capacity | 44.5 cm3 (687 gr H2O) | |||||||||||||||||||
| Rifling twist | 1 in 9" | |||||||||||||||||||
| Primer type | Large Rifle | |||||||||||||||||||
| Maximum pressure (C.I.P.) | 365.0 MPa (52,939 psi) | |||||||||||||||||||
| Ballistic performance | ||||||||||||||||||||
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| Test barrel length: 17.5 Source(s): https://bobp.cip-bobp.org/uploads/tdcc/tab-i/tabical-en-page22.pdf | ||||||||||||||||||||
The 6.5×54mm Mannlicher–Schönauer also known as 6.5×54 Mannlicher–Schönauer Greek or simply 6.5 Greek is a 6.5 mm (.264" cal.) rimless rifle cartridge used in the Mannlicher–Schönauer rifle. It is the direct descendant of the 6.5×53mmR rimmed cartridge from the 1891 Mannlicher rifle, designed to function smoothly through the Schönauer's rotary magazine. 6.5 mm bullets are typically known for their high ballistic coefficients and sectional density, which gives them great stability in flight, resistance to wind deflection, and high penetrating power. It, along with the Mannlicher–Schönauer rifle, was first introduced in Paris at the 1900 World's Fair.