New Marine Corps weapon to replace SAW

[stanc]

Now if I had a pistol firing ammunition that has the same performance as the current ammunition being carried has at 300 yards and beyond. (The pistol would obviously require a round that is much lower than 62ksi). This type of ability would force a rethink of the way we utilize our weapons in much the same way NVGs have changed the battlefield.

Explain/elaborate, please. I don't see how a SCHV pistol would (or conceivably could) materially change things, even assuming that leadership would see fit to take the unprecedented action of making a handgun standard issue to all riflemen.