Wow that is a nice find!
I think Id have to go with the 357 tho, for many reasons, lots of loads available, ammo is found lots of places, no recoil ( at least out of my levergun). reloadability, and If I see a bunny in the brushpile I can pop in a light 38spl and get camp meat! a 20ga slug may not leave much for the pot
That and the USH is a heavy barrel unles you go with the light one.
The 44 mag is fun too, I have one and recoil is super light as well, more like a light pop to the shoulder, were a coat and you cant feel it much at all. Not sure how they are for camp meat, but ill bet ya someone here has worked up a load for anything from gopher to elephant!