Ehh... how bout switching to hollowpoints?
A hollow point on a 5.56 round .... at least the military round, is not that effective. The existing round is designed so that much of the weight is the rear of the bullet. When combined with a slow twist rate, this creates a situation where the round is designed to tumble. The length of the 5.56 during a tumble is greater than the surface area of a hollow point in the same size round.
How about NO?
HOLLOWPOINTS WILL NOT PENETRATE BODY ARMOR OR BUILDINGS.
How about frangible's? I've heard reports that those work well.