With the possibility of bear on the menue, there is no other choice than the .375.
: Most .375's will group all bullet weights from 232gr. to 300 gr. in the same 2-1/2" round group at 100 yards. Inside that 2-1/2" group will usually be several slightly different impacts of 1"(or smaller) to 1-1/2" groups.
: There will probably not be a need to re-sight going from the Sheep load (250 SierraBT) to a good bear load like the new BONDED 300gr. Hornady. While I haven't used the bonded bullet yet, I have complete confidence in it's ability. The standard intrlocked 300 did OK, so the bonded version can only be better.
: The .300, for me, kicked to much for it's modest increase in killing power over the old '06. Yes, I'm partical to descent sized bullets, both weight-wise and diameter. So is the bear's reaction factor.
: This, of course, if merely an opinion.