RE: Bear hunting Q's.....
"If" i was you, i'd use the rifle i'm "already" use to hunting with!!!! With any decent 180 grain bullet (i prefer Nosler partitions) in your 30-06 will kill any black bear on the planet!!!
Personally, i'd rather have the 30-06 for all of my hunting anyway!!! Choose the right bullets for it, and it will do just fine on anything we have in the U.S....
Both would work, but i like the 06 better because it will do it all!!
Drilling Man