I would go with a premium if bear is on the menu. Many will tell you that they are not particularly tough. But, they don't leave the best blood trails and they will get into some thick, nasty cover. I would want an exit wound. And bears are tougher to pick perfect shot placement on. Your scope will be full of black. If you have a shoulder shot, or a quartering shot, you want a tougher bullet that will pass through in less than ideal situations.

I would find something with a Barnes X bullet (or equivalent), Nosler Partition or Accubond. If you are going with standard bullets (like Core-Lokts) go with the 180 grain bullets.