Back when I used to hunt a lot of small game (squirrels, rabbits, grouse, occasional pheasant) I used to think/argue that #6 was best all around size, followed by 7.5 and 8's a distant 3rd. The 8's just didn't perform well on squirrels or pheasants. I used to wish for a factory load in #7 as I figured that would be the ideal all around size (for my purposes). Now that I'm older and wiser(questionable) I realize how little difference there is in these in reality, especially the 7.5 and 8's. I still think that #6s work best for me, in fact I now use some bismuth 6s as I hunt some public land that requires non toxic and they work very well. I think steel #5's would work good but I've never seen a factory load suitable for upland game with them. Not a real question just looking for some discussion.