OK. No answer. I'm going with the 257 and 100 gr Noslers. This should shoot flatter than the 300 Win Mag with 168s and 100 grains should be enough for a sub-200# white tail...
I'll load it mid-strength; Nosler says the starting load is more accurate but I believe my Weatherby Mark V has a long throat and is probably yielding lower pressures and velocities. I'd like to test it with a chrono but don't have one. The rather large drop I'm getting between 100 and 200 yards seems to suggest this... ??
I don't have time before this hunt to explore multiple options