Well, I shoot 3 1/2's. I'm not a sissy like the rest of you fellows. I can take a little extra kick.
You don't notice the kick when you shoot at a gobbler. I have to disagree a little. I think you do get a little more range. You also get more pellets, which could increase your odds of killing one at longer distances. I will agree there is not a whole lot of difference, and JW is right, it's all about getting them close, but if a bird is hung up at 50 yards, I have complete confidence my 3 1/2's will do the job. They will drop them dead well past 50, but that's about as far as I want to go.