I hunt in "grizzly country" ever year. We have LOTS of them here.

It's interesting to me that one of the biggest sellers at the sporting goods stores in Wyoming is the Marlin 1895.
We don't have many "professional writers" living in Wyoming, but if you look at what the locals like in the mountains around here, the 45-70s are pretty common. The carry in the hand or in a saddle scabbard well, and they do a super good job on anything at close to medium range.
For dangerous animals "close range" is the only range that's important.
No animal is dangerous until it can touch you.