9×30mm_Grom
9×30mm Grom
Russian munition
The 9×30mm Grom (Гром. , Russian for Thunder) is a Russian round developed between 1992 and 1993, designed for the Gepard (submachine gun), it answers the need to defeat 1B2 body armor at a range of 100 meters. [2][1]
| 9×30mm Grom | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Place of origin | Russia | |||||||||||
| Production history | ||||||||||||
| Designed | 1992–1993 | |||||||||||
| Specifications | ||||||||||||
| Parent case | 9x19mm | |||||||||||
| Case type | Rimless, tapered | |||||||||||
| Bullet diameter | 9.02–9.27 mm (0.355–0.365 in) | |||||||||||
| Land diameter | 8.82 mm (0.347 in)value from 9x19mm | |||||||||||
| Neck diameter | 9.65 mm (0.380 in)value from 9x19mm | |||||||||||
| Base diameter | 9.93 mm (0.391 in)value from 9x19mm | |||||||||||
| Rim diameter | 9.96 mm (0.392 in)value from 9x19mm | |||||||||||
| Rim thickness | 1.27 mm (0.050 in)value from 9x19mm | |||||||||||
| Case length | 30.05–30.20 mm (1.183–1.189 in) | |||||||||||
| Overall length | 40.8–41.1 mm (1.61–1.62 in) | |||||||||||
| Case capacity | 1.43cm3, with bullet inserted 1.11cm3 | |||||||||||
| Maximum pressure | 260 MPa (38,000 psi) | |||||||||||
| Filling weight | 0.88- 1.05 g | |||||||||||
| Ballistic performance | ||||||||||||
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| Test barrel length: Gepard (submachine gun) Source(s): [1] | ||||||||||||
A regular and an armor piercing variant were designed, the non-armor piercing bullet taken from the 9×19mm Parabellum and the armor piercing bullet was taken from the RG054 cartridge, it has a black painted tip.[1]
The case is a stretched 9x19mm case, manufactured from phosphate varnished steel. The propellants used are pyroxylin and smokeless powder consisting of spherical ellipsoids which measure from 0.45-0.75mm, resulting in powder density of 0.95g/cm3.[1]
- 9×23mm Winchester
- 9×25mm Mauser
- 9x29mm
- 9×25mm Dillon – shorter but wider 9mm bottlenecked cartridge with the same capacity
- .357 Magnum – similar rimmed cartridge
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