20 TAC Sierra 39 Grain Load Data Needed

Just formed a hundred 20 Tac brass from new Winchester 223, man I LOVE being retired. Going to be loading some Sierra 39 grain bullets in the next day or two and am having trouble finding load data for them. They will be shot in a 20 TAC Contender with 22 inch OTT barrel. Been shooting 32 grain and just want to try the 39s. Have access to a LOT of different powders. BL-C2,H322, H4198, H335 just to name a few. Need starting load or "pet load" if you have one.
All input appreciated
Thanks in advance and Happy Fathers Day to ALL
Doug