There isn't anything in MN or WI that your 25/06 won't handle though I would prefer one of your 30 calibers for black bear. This only because I like large exit holes in bears to provide the best odds of a good bloodtrail. Your 25/06 will do well on the typical bear but get a truly large bear at the bait and all that fat has a better chance of limiting the blood trail with a smaller bullet.
Just make sure you pick a zone that allows rifles for hunting. There are some shotgun/muzzleloader/pistol areas similar to Iowa. These areas can have some fantastic deer hunting but you will still be without use of your rifles.
