Have one, but never fired it. It’s a “Big Iron” piece’ ammo not readily available.
There is a source for blackpowder cartidges for it. That is what I have used. You can also use low-power maodern cartridges with one.
I’ll get you the information on the source.
I want to start hand-loading my own and have a great little book on that - I’ll get you the name.
For a hunting gun, you could probably take any animal in North America with the proper shot placement.
I didn’t notice any terrrible kick with the black powder charges. My guess is the carbines must kick quite a bit though.