That said, the article is a little over-the-top. There are real dangers out there faced by LEOs every day. Tracer, Sub Sonic, Training and Blank ammunition available. The muzzle velocity of the SS190 is 2,346fps when fired from the P90 and 2,133fps with the Five-seveN. The 5.7 ammunition has only 60% of the recoil impulse of a 9mm.
The SS190 will perforate 48 layers of Kevlar up to 200 meters when fired from the P90 and achieve the same result up to 50 meters with the Five-seveN handgun.
This also creates a large wound cavity and quick incapacitation. This design virtually eliminates the risk of over penetration. This causes the bullet to tumble in soft body tissue after 2 inches of penetration. The tip of the ogive has a steel penetrator followed by an aluminum core that is heavier than the forward tip. The SS190 has unique design, utilizing two metal inserts. The 9mm FMJ round will not penetrate modern body armor and the 5.56mm (.223 Rem.) rifle ammunition creates over-penetration concerns in a close combat situation or urban warfare. The 5.7x28mm SS190 ammunition has been designed to bridge the gap between the 9mm ammunition and the 5.56 x 45mm.
The 5.7x28mm weapon system is comprised of three components: the 5.7x28mm ammunition, the P90 Sub-machine gun, and the Five-seveN handguns.
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