Most squirrel hunters that hunt "Forks of the River" TWRA, (shotgun only), use 20 and 12. I use a 500E Mossberg .410, (black pump w/24" barrel). I absolutely love it. It's by far my favorite pot filler. Depending on the time of the year I use 4, 6, or 7.5.
There are times though when only a .22 is gratifying. The .410 does fill the pot, but a good .22 is more fun sometimes.
There are times, (like this past weekend), when I avoid WMAs. This weekend was the opening of bow season, (deer). I don't know how others feel, but I don't want to interfere with another hunter. I have not asked a bow hunter how they feel about it, I just assume that they may be a little put off by squirrel hunters running the deer off. I don't want to spoil the beginning of any season for anyone.
I'm not a bow hunter so I really don't know HOW they feel about it. I do appreciate the opening weekend of gun season being respected, even though there will always be someone somewhere stomping through the woods on opening day.