Do you know why they use bigger bullets like the 4570, 444, or the 35 Whelen for black bear?...Because when bear are hit, their fat can plug the hole and your blood trail would be less with a 243 or 30/30. Don't get me wrong they, 243 and 30/30 will kill a black bear.. However maybe that will give you a reason to buy a bear gun...You need a bigger bullet so it does not get plugged with BLUBBER!!!!!!!
I would love to hunt black bear some day. If I was going to go...I would use a 45/70 Encore.
Me thinks you need to tell the wife you want a 4570, 444, 450 Marlin, 35 Whelen as a bear gun so those holes don't get plugged up!!!!