6, 7 1/2, & 8 is what I use in my 20s don’t use hi velo loads as well though most of my shots are 30 or under. I run into duskys when hunting ruffed grouse and usually use 7 1/2 or 8 on the ruffs. They are bigger birds though and have/still do carry 6 shot, just don’t see a stark raving difference.