You can find 3000 fps plus all day long. It isn’t rare. Of course that’s not out of modern sexy short barrels.
True.it’s available.. but .223 is nonetheless a light weapon caliber at 1000 to 1500 ft/lb muzzle energy.
Your typical 30-06 at very similar velocity (+/- 200 fps) produces twice the muzzle energy. It’s not helpful in the gun-control debate to admit the premise that “scary” AR-15s are more powerful than they really are.