9 x 21 mm IMI
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The 9 x 21 mm IMI pistol cartridge was designed for those markets where the 9 mm Luger cartridge cannot be purchased by civilian users, notably Italy.
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[edit] Design
Based on the 9 mm Luger cartridge, the casing was lengthened from 19 mm to 21 mm. The bullet sits a little deeper, which results in the same overall length as the 9 mm Luger cartridge.
[edit] Performance
Performance is identical to the 9 mm Luger.
[edit] Muzzle velocity
- 7.5 g (115 gr) full metal jacket: 390 m/s (1280 ft/s)
- 8.0 g (124 gr) full metal jacket: 360 m/s (1180 ft/s)
[edit] Notes
As it is a rimless round, the 9x21 is used in USPSA/IPSC competition in Open class firearms. The reason being is that the semi-rimmed case will not lock together in a double-column magazine, causing a malfunction, whereas an improperly built 38 Super firearm can, as the rimmed cases can lock together in the magazine, causing a jam. As other .38 Super based rimless cases became available, the 9x21 decreased in popularity in the US for competition use, but it is still widely used in the rest of the world. These competition rounds are handloaded and not available commercially.
[edit] Synonyms
- 9 x 21 mm
- 9 mm IMI
