i think the 6.5 creedmore, 6.5-.284, .260, 6.5 SAUM, 7MM STW any of the those LR shooting guns would be ideal. a lot of western hunters are going to these calibers from antelope to elk knocking them flat at 600 yards or more.
for the none LR guys, i would think a 7MM, 25-.06 30.06 would please...