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The 9×39mm is a Soviet rifle cartridge, It is based on the Soviet 7.62×39 mm round, but with the neck expanded to fit a 9.3mm bullet. It was developed in the 1980s. The intent was to create a subsonic cartridge for suppressed firearms for special forces units that had more power, range, and penetration than pistol cartridges usually used in such weapons. 



Ammunition Type Damage Muzzle Energy Bullet Velocity (m/s) Barrier Penetration Armor Piercing
SP5 9.5 800 295 0.222 10
SP6 11.3 800 295 0.952 62

Note: Barrier penetration represents the rounds ability to go through walls and barriers. Armor piercing represents the rounds ability to penetrate body armor plates.