Did you take the action off the stock and make sure it's seated correctly? 3 T3s here and each one pounds holes.I made 2 changes: Mounted a Zeiss, Cleaned it really well, keeping in mind this is a new rifle, and only the 2nd range trip.
It's grouping much much better, not MOA, but Elk accurate. Probably 2" groups. It's certainly acceptable now for hunting.
Also have a kimber that pounds... how does yours shoot?