No more so than a pump shotgun.

With an aimpoint "scope" it could be useful out to 100y, but more likely 50.

This idea came to me when I heard about the development of shoulder fired 50 BMGs. There aready is a shoulder fired 50, its called the 500 NE!

But, why not bring back and old stand-by, the coachgun; but in the form of a high energy rifle assault rifle.