7.92X33mm Kurz Ammo
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The 7.92×33mm Kurz is a rimless bottlenecked intermediate rifle cartridge developed in Nazi Germany before and during World War II. The ammunition is also referred to as 7.9mm Kurz, 7.9 Kurz, 7.9mmK, or 8×33 Polte.
The cartridge was the same caliber, and had the same base diameter, as the 7.92×57mm, which was employed by the standard German Army infantry rifle, the Karabiner 98k, as well as its machine guns.
The 7.92×33mm Kurz has a 2.22 ml (34.3 grain H2O) cartridge case capacity. The exterior shape of the case was designed to promote reliable case feeding and extraction in assault rifles under extreme conditions.
About: 7.92x33mm Kurz
- Type: Rifle
- Place of origin: Nazi Germany
- In service: 1943–present
- Used by: Nazi Germany
- Designer: Polte ammunition works, Magdeburg[2]
- Designed: 1938
- No. built: 822,000,000 (1942–1945)[3]
Specifications
- Parent case: 7.92×57mm[4]
- Case type: Rimless, bottleneck
- Bullet diameter: 8.22 mm (0.324 in)
- Neck diameter: 9.10 mm (0.358 in)
- Shoulder diameter: 11.40 mm (0.449 in)
- Base diameter: 11.94 mm (0.470 in)
- Rim diameter : 11.95 mm (0.470 in)
- Rim thickness: 1.30 mm (0.051 in)
- Case length: 33.00 mm (1.299 in)
- Overall length: 48.00 mm (1.890 in)
- Case capacity: 2.22 cm3 (34.3 gr H2O)
- Rifling twist: 240 mm (1 in 9.45 inch)
- Primer type: Berdan
- Maximum pressure: 340.00 MPa (49,313 psi)
Ballistic performance
| Bullet mass/type | Velocity | Energy |
|---|---|---|
| 8.0 g (123 gr) FMJBT | 685 m/s (2,250 ft/s) | 1,886 J (1,391 ft⋅lbf) |
| 8.1 g (125 gr) Ball | 685 m/s (2,250 ft/s) | 1,909 J (1,408 ft⋅lbf) |