8×68mm S
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The 8×68mm S rebated rim bottlenecked centerfire rifle cartridge was developed in the 1930s by August Schüler of the August Schüler Waffenfabrik, Suhl, Germany as a magnum hunting cartridge that would just fit and function in standard-sized Mauser 98 bolt-action rifles. The bore has the same lands and grooves diameters as the German 7.92×57mm Mauser service cartridge (designated as "S-bore"). This is one of the early examples where a completely new rifle cartridge (the 6.5×68mm and 8×68mm S have no other cartridge as parent case) was developed by a gunsmith to fit a specific popular and widespread type of rifle.
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Quick Facts Type, Place of origin ...
8×68mm S | ||||||||||||||||||||||||
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Type | Rifle | |||||||||||||||||||||||
Place of origin | Weimar Republic, Nazi Germany | |||||||||||||||||||||||
Service history | ||||||||||||||||||||||||
In service | Never issued | |||||||||||||||||||||||
Production history | ||||||||||||||||||||||||
Designer | August Schüler | |||||||||||||||||||||||
Designed | 1939 | |||||||||||||||||||||||
Produced | 1939–present | |||||||||||||||||||||||
Specifications | ||||||||||||||||||||||||
Parent case | Unique | |||||||||||||||||||||||
Case type | Rimless, bottleneck | |||||||||||||||||||||||
Bullet diameter | 8.22 mm (0.324 in) | |||||||||||||||||||||||
Neck diameter | 9.14 mm (0.360 in) | |||||||||||||||||||||||
Shoulder diameter | 12.15 mm (0.478 in) | |||||||||||||||||||||||
Base diameter | 13.30 mm (0.524 in) | |||||||||||||||||||||||
Rim diameter | 13.00 mm (0.512 in) | |||||||||||||||||||||||
Rim thickness | 1.40 mm (0.055 in) | |||||||||||||||||||||||
Case length | 67.50 mm (2.657 in) | |||||||||||||||||||||||
Overall length | 87.00 mm (3.425 in) | |||||||||||||||||||||||
Case capacity | 5.58 cm3 (86.1 gr H2O) | |||||||||||||||||||||||
Rifling twist | 280 mm (1 in 11.02 in) | |||||||||||||||||||||||
Primer type | Large rifle magnum | |||||||||||||||||||||||
Maximum pressure | 440.0 MPa (63,820 psi) | |||||||||||||||||||||||
Ballistic performance | ||||||||||||||||||||||||
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Test barrel length: 650 mm (25.6 in) Source(s): RWS / RUAG Ammotech[1] |
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