The general analysis I am "feeling" is that I don't have a "bad" choice in my list... I am going to do some load development with the Gamekings and Partitions for accuracy out to 250 yards... (close to my max PBR). Since I have a couple of powders to try; BLC (2), Varget, 4895 and 4350... I might work on both first with testing for accuracy at 250 yards at the 2850 fps at the muzzle to start and work up slightly.
I have a new (to me) Chrony to play with anyway.... good excuse.
Thanks for all the comments.