I'd Happily use the 6.5s on ALL North American game, Except Big Bears......if I had no backup. On those I would feel better with a 9.3 or 375, talking Grizzly......on the H&H.
I will add, IF for any reason I had s charge by a large bear, the larger heavier rounds might ...again MIGHT make one a bit more comfortable. For me, it would start at 338/06 with 225 Partitions, though a 200 PT in an '06 would do well. The 350 RM with 225 PT would also do well. Might not make much difference, but if I were running a 30, I would use an 06 over the 308, a bit heavier bullet at better speeds. I would not pick a magnum, in the 30, that's just me. Not if shooting nominal ranges.
