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FN 5.7 × 28 mm

Region
United States
Belgium
Category
Ammunition, Missiles and precision weapons
The case is rimless, bottlenecked, steel and Berdan primed. The streamlined bullet is composed of a steel and aluminium core within a steel jacket. The Ball SS190 projectile can penetrate body armour (48 layers of Kevlar BS 1500) or a Kevlar helmet at more than 150 m. Developed in the mid-1980s for the P90 personal weapon. The intention was that it should replace the 9 mm Parabellum cartridge with something having better penetrative ability at short range. The bullet will penetrate a standard M1 steel helmet at
150 m range and 48 layers of Kevlar at over 50 m. The stopping power is claimed to be three times that of the 9 mm Parabellum; the bullet does not fragment but gives up its energy very rapidly on impact. This ammunition is also manufactured in the US by Winchester-Olin. Applications include FN HERSTAL P90 personal weapon and associated Five SeveN pistol.