If the old arguments that made the .223 the basic round hold true, then this new gun will be something some corporal will call for to be delivered to some firefight to dislodge a couple of bad guys. Why not a few grenades? how about a rocket? maybe even a warthog or helo attack? The ammo and the price of the gun probably would pay for any one of these already proven methods of terminating the problem. Unless it could be the "basic" weapon for a ground pounder, I just look at it as a curious gadget. Maybe after a few years the prices of these things will decrease and make it possible. Then we will have to compare apples to apples( and hopefully go back to the .308):<). A .308 will go through many of the walls that this weapon is designed to defeat. And I have seen a .50 dismantle stone walls to leave no where to hide for the enemy.
I hear ya...