JWhite, I think you've got the right idea about your group size. You'll find most of the guys here are just as, if not more, anal than you when it comes to this. My feeling on it is this; if I am shooting two inch groups at 20 yards and the vitals of a deer are 8 inches in diameter I'm in good shape. Since my groups are 2 inches, if I slip up and miss my mark by 2 inches I'm still in the kill zone easily. If my groups are 5 inches and I slip up by 2 inches where does that put me? A missed or worse, wounded deer.