P*** off RINO.
Sorry, he’s right.
Out of the FiveSeveN, the 5.7x28 is only moving at 1650 fps and has only 242 ft-lbs of energy.
The AR-15 firing the ‘weak’ 5.56x45 rifle cartridge makes 3200 fps and develops 1200ft-lbs of energy.
The heavier M1 or FAL firing the .308 Winchester or 7.62 NATO cranks out 2754 ft/sec. The reason that round is sometimes known as “the meat axe” becomes clear when you discover that it has **2422** ft-lbs of energy.
In fact, the 5.7mm isn’t that far off from 9mm velocities. The 9mm 115gr pistol bullet travels at 1300fps and has 420 ft-lbs of energy.
Sorry, you’re wrong. It’s just not that good a round.
Are you refering to me? Or is it someone else.