...quite right and have a high velocity of about 2400 fps and will penetrate military vests!! Will also tumble quickly to do max damage to tissue. With 20 round mags, he probably reloaded twice before she nailed him...
Not quite. The ammo velocities quoted are based on muzzle velocity in the P90/PS90 rifle barrel. It is also sensitive to the bullet weight. The 28 gr LF can achieve 2350 fps in the rifle. A common 40 gr in the pistol is going to be around 1950 fps or lower. See 5.7 ammo. Ballistics are similar to the 22WMR.