Hello jstcows and welcome to TFF. I dragged out my old Lyman "Shotshell Handbook", Second edition and here is what I found. I will assume these are low brass WAA target hulls. If they are different, then this data does not apply.
26.5 gr; Winchester 209 primer, Remington RP12 wad.
27.5 gr; CCI 109 primer; One Pacific Green Verelite wad.
28.0 gr: CCI 109; Winchester WAA12R wad;
22.5 gr; Winchester 209; Remington RP12 wad
22.5 gr; Winchester 209; One Pacific Blue Verelite wad.
24.0 gr; WW 209; WAA12R wad.
Hope this helps. I would recommend getting a newer edition of the Lyman book and seeing what they say!