Originally Posted by cole
If the head shot is the easy target for you, better for you to aim there to begin with. Aim for the very tip of the nose that way you can hit the brainstem.
However, I'm not that crack of a shot, so I'd go center mass personally. Under duress, given the choice of targeting an object the size of a cantelope or one that is the size of a basketball, I'll aim for the basketball.
That is the issue - the vunerable part of the head is the triangle from the corners of the eyes to the bottom of the nose - more like a 3x5 index card than a cantelope.