9×21mm Gyurza
The 9×21mm Gyurza (Гюрза, Russian for "blunt-nosed viper") round is a Russian handgun round designed to defeat body armor that was developed by TsNIITochMash for its SR-1 Vektor semi-automatic pistol and SR-2 Veresk submachine gun.
| 9×21mm | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
9x21 RG054 cartridge – the predecessor of SP10 | ||||||||||||||||
| Type | Pistol | |||||||||||||||
| Place of origin | Russia | |||||||||||||||
| Service history | ||||||||||||||||
| Used by | FSB Russian Army | |||||||||||||||
| Production history | ||||||||||||||||
| Designer | TsNIITochMash | |||||||||||||||
| Produced | 1990s–present | |||||||||||||||
| Variants | SP-10 (7N29), SP-11 (7N28), SP-12, SP-13 (7BTZ) | |||||||||||||||
| Specifications | ||||||||||||||||
| Parent case | 9×21mm | |||||||||||||||
| Case type | Straight, rimless | |||||||||||||||
| Bullet diameter | 9.05 mm (0.356 in) | |||||||||||||||
| Shoulder diameter | 9.6 mm (0.38 in) | |||||||||||||||
| Base diameter | 9.9 mm (0.39 in) | |||||||||||||||
| Rim diameter | 9.9 mm (0.39 in) | |||||||||||||||
| Rim thickness | 1.2 mm (0.047 in) | |||||||||||||||
| Case length | 20.9 mm (0.82 in) | |||||||||||||||
| Overall length | 32.7 mm (1.29 in) | |||||||||||||||
| Ballistic performance | ||||||||||||||||
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| Source(s): Modern Firearms | ||||||||||||||||
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