Well, here is my two cents for what it is worth. I have taken only two head shots but they were close (under 50 yards) one with a scope and one with a peep. I would not really say this is a shot I would recommend on any kind of a consistant basis. Though it is effective, and would usually result in either a hit or a miss, I know one guy who took one and found only jaw fragments where the deer once stood. So, as said by Mel Gibson in the movies, aim small, miss big. Go for the heart shot (lung shot) if you have it and avoid the head if possible.