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FN 5.7×28mm

The FN 5.7×28mm is a small-caliber, high-velocity, smokeless-powder, rebated, bottleneck, centerfire cartridge designed for pistols and personal defense weapons uses, manufactured by FN Herstal. It is similar in length to the .22 WMR and .22... Wikipedia
Bullet size: 5.7×28mm
Bullet diameter: 5.70 mm (0.224 in)
Case capacity: 0.90 cm3 (13.9 gr H2O)
Designed: : 1986–1990 (SS90); 1992–1993 (SS190);
In service: 1990–present
Manufacturer: FN Herstal
Maximum pressure: 345.00 MPa (50,038 psi)