I had a Rossi 92 in .454 for a while. With a little slicking up, it was a great little gun.
I never fired a .454 round through it, but I did put plenty of .45 loads down range that would rival low end Casull rounds, generally a 300 grain bullet at around 12-1300 fps.
It had plenty of thump with those, at both ends, but it wasn't unbearable. The rifle was a joy to carry. It wasn't a long range target gun, but was plenty accurate for marauding beer cans out to 50-75 yards.
I will say that the factory sights are not great, and I replaced mine with modified Skinner receiver sight mounted to the top of the bolt, where the factory safety used to sit. My rifle was drilled and tapped under the rear sight for a forward scope mount, which I always thought would be perfect for something like an Aimpoint Micro or a Trijicon RMR.
I eventually sold it for the same reason I sold the .45-70 that it had replaced. For my purposes it was too much gun. Even downloaded, it gave complete pass throughs on everything I ever shot. Plus, you're throwing lead away 250-300 grains at a time. Now I shoot a .32-20, and I'm down to 85-110 grains per bullet, but that won't do for your Michigan deer.