Still following the thread. Haven't hunted in years, but haven't seen the point in killing an animal unless there was a reason. For hunting, it was food. My idea was something for a dangerous situation. Decades ago, a black bear on our side of a property line crossed a fence and went after a couple of boys, who got away when their dog ran interference. Saw another, possibly the same one, a few years later put his front paws on the top of the fence and jumped over. After the first incident, when we fixed fence, we carried 12 gauges with rifled slugs, just in case.
A .30-30 is lighter, though. Even with a shotgun, I'd prefer one with a sling to keep hands free as much as possible. That was the problem carrying a shotgun while fixing fence. Not really keen on revolvers or 10mm. Don't have a rational reason as to why.