Number 4's are my pheasant-favorite when using a 12 ga., fives for the 16, and for all hunting loads I use 6% antimony shot, often buffered. Wild pheasants can get up and run sometimes as we all know. That's when I'm hoping a few more shot will break a leg or kill outright to anchor them until I can get there. They only have to wiggle under the matted weeds to disappear forever, without a dog. It really pains me to have one go off, suffer and just be wasted, but among a group of hunters at least one will do that in a season. Just trying to cover the bases. Of course, it might be better all around to just pick up the 12, but so many of the drillings are 16 ga format, and they make a whining sound when I leave the house without them. Thanks all, for the help and advice!