Originally Posted By: chaosmagnet
That's not at all the reasoning. We train people to shoot for the torso because it's bigger and is likely to be moving less.

That's not what I meant though, I should have picked a different example to avoid this confusion. Say the accuracy isn't an issue at all, you are a good shot, you hold well under stress and you know you probably will hit exactly where you aim. Even in this case, I don't think you are obligated to aim for the head or even the torso. You may choose to aim for arms or legs if you wanted to give the attacker one more chance to stop.