My shop had one in .480, I held it and I was impressed. It's kinda funky looking with a snubby barrel on it and the full size grip.
Not sure what was said previous cause I didn't read the whole post, but I was always under the impression that a 480 will 'push' and a 454 'snaps' in regards to recoil.
Although with a snubby in either calibre it's going to be a little painful. The other thing I held was a PD model Smith in 44 magnum with the scandium and titanium workings. Light, but I wouldn't want to fire a magnum cartridge out of it.