ORIGINAL: Pawildman
I take it that you are going on a spring black bear hunt? If so, any of the guns you mentioned should do the job adequately. Use the one you are most comfortable with. Although blacks can get quite large, they are not that difficult to kill.
Agreed. I have only killed one black bear with a CF that was 270 win using 130gr NP- Double shoulder bang flop affair. The majorityhave beenshot with a bow but also took a couple with a ML, never had 1 cover more than 50 yards with double lung hit.