Im going to disagree on the latter based on my experience, which is that moose and caribou aren't that difficult to kill... Unless you shoot them in a large bone (e.g. humerus) with a soft point, which then grenades and ruins lots of meat, and requires follow up shots. Corelokt and SST for example.
A bonded bullet provides both good expansion and penetration to allow for a broader range of ethical shot angles. Plenty of 165-180gr bonded or even 150-168gr copper options for 308 that will work well inside of 400 yds or so, where velocity should still be above 2000fps for expansion to at least 1.5x caliber.