Cor-Bon and Robinson Armament have created a new caliber called the 6x45

The 6X45 is a 5.56x45 case necked-up to 6mm projectile. The 85gr DPX bullet has a muzzle velocity of 2,800fps and approx. 1480lbs at the muzzle with a 16" barrel

In terms of terminal performance can anyone here speculate how such a bullet will perform compared to other duty class calibers, and with threat incapacitation