At 10-15 yards or less, I take a body shot. My pattern is far too small to make an effective head kill at that close range. Granted, I have taken them in the head at extremely close range, but I've missed them at less than 5 yards.

At 5-15 yards, your pattern is probably smaller than a baseball, which leave little/no margin for error. If you want him bad enough, drop down on his wings or the base of his neck and crush him. The shot may not be lethal, and you may have to snap his neck. Not for the faint of heart, I suppose.

I've missed at really really close range a couple times, and it's very frustrating when it happens. A turkey's head is almost constantly moving, and while that may be a non-factor at 20 yards, at 5-10 yards, one quick turn of his head means the difference between agonizing defeat and tagging out.

So, for those reasons, I will take the body shot at pretty much anything under 10 yards.

A total whiff at 5 yards is a tough pill to swallow, trust me.