Quote:
Originally Posted by CrazyPhuD
As a purely technical point, hollow point is unnecessary in the 5.7 round. Why? It's been specifically engineered to tumble once it enters tissue. They do this by shifting the center of mass of the bullet rearward so that when the tip slows down radically by entering tissue the back end comes around initiating significant yaw.
For bullets not designed to tumble hollow points are useful....for bullets designed to tumble they don't provide much added benefit. The 5.7 bullet is long....when it tumbles it generates a significant wound cavity.
Note sporting 5.7 ammo out of the fiveSeven won't reach high enough velocity to penetrate a IIIa vest. Out of the PS90 it will but not the fiveSeven. To penetrate soft armor with the fiveSeven you would need to use the LE ammo or in some cases very hot aftermarket ammo.
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Sounds like CrazyPhuD knows a lot more than me. I had no idea the rounds were designed to tumble. That makes a big difference in CCW consideration.