I have never taken a head shot. Iknow that they are deadly and will drop the deer instantly but there is just too much room for error with a head shot. This with a firearm of course. I also think that if you are that close where you feel confident enough to try a head shot, a shotthrough the shoulders would be a better choice.

When I gun hunt I like to take out at least one shoulder as it keeps the deer from running too far...... if they don't drop in their tracks.

With a bow I would never even consider it at all, I'm strictly aiming for the heart and lungs only.