Most of the ones that I get mounted, that field dress between 190 and 205, have 23-24" forms. The 220 lb deer I shot in Ill. had a 28" form. Most of these were shot in November. Usually earlier season deer have slightly smaller forms.
I have watched my buddy mount many deer and have saw countless others at his studio and have never saw a 23+ inchform on a whitetail...... Please post photos.