The 8mm Roth–Steyr is a military centerfire pistol cartridge adopted by the Austro-Hungarian cavalry in 1907 for the Repetierpistole M7—the first self-loading pistol adopted by a major military power. The cartridge headspaces on the mouth of the case. Ammunition was typically packaged in a unique ten-round charger. Austrian military production contained greased un-plated steel-jacketed bullets. A few private firms in Austria manufactured ammunition with cupro-nickel-jacketed bullets.[1]
8mm Roth–Steyr |
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Type | Pistol |
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Place of origin | Austria-Hungary |
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Case type | Rimless, straight |
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Bullet diameter | 8.16 mm (0.321 in) |
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Neck diameter | 8.80 mm (0.346 in) |
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Base diameter | 8.85 mm (0.348 in) |
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Rim diameter | 8.85 mm (0.348 in) |
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Case length | 18.65 mm (0.734 in) |
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Overall length | 29.00 mm (1.142 in) |
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Bullet mass/type |
Velocity |
Energy |
116 gr (8 g) FMJ |
1,088 ft/s (332 m/s) |
302 ft⋅lbf (409 J) |
113 gr (7 g) FMJ |
1,070 ft/s (330 m/s) |
290 ft⋅lbf (390 J) |
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Source(s): "Textbook of Automatic Pistols" [1] |
- 8 Steyr
- 8mm Steyr
- 8mm Roth
- 8mm Roth–Steyr
- 8mm Steyr Armee Pistole
- 8×18
- ^ a b *Wilson, R. K. Textbook of Automatic Pistols, p.242. Plantersville, SC: Small Arms Technical Publishing Company, 1943.