I'd try the CFE223 first, myself. The 63 grain Sierra is short for its weight and is the heavy bullet most likely to stabilize in a slow twist .22-250. My guess is that it will be fine in a 1:12 (it stabilized in my 1:14), but there's only one way to find out.
BTW, the load books show Superformance as the velocity champ; I've had very indifferent results with it myself and found the book max loads to be way high in my rifles. Of course, YMMV.
NRA Endowment & DSC Lifer