The 9x21mm Russian round is a modern pistol cartridge of Russian origin. Its development started in the 1980's in the Soviet Union under the Grach program. Three rounds resulted from this program. These are the very hot loaded 7N21 and 7N31 (aka PBP) 9x19mm rounds and a 9x21mm round that is also known as the SP-10. The Russian military shifted its attention in the mid 1990's towards the 9x19mm versions, but several government institutions adopted the 9x21mm round and it is slightly becomming a more common round in Russia. The Russian 9x21mm round should not be confused with the less powerful 9x21mm IMI round.
Production: Russia
Pattern: 9x21mm Russian
Penetration: 30 layers of Kevlar and two 1.2 mm titanium plates at 50 m
Color: Red case mouth, black tip
Total length: 32.8 mm
Total weight: 11 g
Bullet diameter: 9 mm
Velocity: 410 m/s at muzzle
