first off I have never hunted turkeys but am thinking about it. Since pattern density seems to be the big issue. Why not use 7 1/2's. Lots of guys talk about not shooting past 35 or 40 yards. I can't imagin that 5 or more pellets in the head / neck can't kill a turkey even using 7 1/2's and they should patter very well out of all of your turkey guns.