| 9×23mm Steyr [1] | ||
|---|---|---|
Steyr Hahn M1912 show with 9×23mm Steyr ammunition on stripper clips. |
||
| Type | Pistol | |
| Place of origin | Austria-Hungary | |
| Service history | ||
| Used by | Austro-Hungarian Army | |
| Production history | ||
| Designer | OEWG | |
| Produced | 1911 | |
| Specifications | ||
| Case type | Rimless, straight | |
| Bullet diameter | 9.03 mm (0.356 in) | |
| Neck diameter | 9.62 mm (0.379 in) | |
| Base diameter | 9.70 mm (0.382 in) | |
| Rim diameter | 9.70 mm (0.382 in) | |
| Rim thickness | 1.25 mm (0.049 in) | |
| Case length | 23.20 mm (0.913 in) | |
| Overall length | 32.99 mm (1.299 in) | |
| Primer type | Small pistol | |
| Ballistic performance | ||
| Bullet weight/type | Velocity | Energy |
| 115 gr (7.5 g) FMJ | 1,025 ft/s (312 m/s) | 268 ft·lbf (363 J) |
| 115 gr (7.5 g) FMJ | 1,080 ft/s (330 m/s) | 298 ft·lbf (404 J) |
| Source(s): 1. Hornady; 2. Fiocchi | ||
The 9mm Steyr is a centerfire pistol cartridge originally developed for the Steyr M1912 military pistol. The cartridge headspaces on the mouth of the case. This was the service ammunition for Austria-Hungary during World War I and remained the service ammunition for Austria and Romania between the World Wars.[2] It is dimensionally similar to, but not interchangeable with the 9×23mm Largo.[3] The cartridge performance is close to that of the .38 ACP. It is unrelated the modern 9×23mm Winchester.