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FN 5.7 × 28 mm

FN 5.7 × 28 mm

Region

United States
United States
Belgium
Belgium

Category

Ammunition, Missiles and precision weapons
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.
Tech Specs
Round length40.5 mm
Case length28.9 mm
Rim diameter7.8 mm
Bullet diameter5.71 mm
Round weight6 g
Bullet weight2.02 g
Muzzle velocity(P90) 715 m/s; (pistol) 650 m/s
Recoil impulse1.95 kg m/s
Chamber pressure<345 MPa
Muzzle energy540 J
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