IMO, from the bullets you listed, I'd select the 225 Nosler Partition and 225 Swift A-Frame.
I'd start reloading those two, and see where it leads. Looks like you'll be buying loaded ammo, so you can go straight to the firing range. See how your gun likes those two, and soak up a dozen phone books or so to see what the expansion will be like.
It's nice when you can stay at least 20 yards away from the big bruins isn't it. Kinda hairy when they get closer...


Someday the 35 Whelan is going to find a spot in my cabinet - just have to find or build one in left hand version! It'll probably be a build one.