To hunters who take shots within sane distances, this is not a consideration. Who cares if your bullet hits a hand’s breadth wide at 300 yards? However, if you move out to 600, you’re now looking at 4.5 inches of drift. This is without the benefit of wind, which can add to the problem. And if you’re shooting in competition, where there is no margin for error anywhere, going wide to any degree is a problem.