cottonmouth,
I have a 6" Freedom Arms .475. Very nice combination of power, packability and shootability. The 4 3/4" should be even handier and you shouldn't give up much in the way of balistics. I mostly shoot 400gr at 1,100 fps. There is a noticible increase in recoil with 420s at 1,300fps. Just make sure you don't fall asleep with the heavy loads or your forehead will pay the price.
FWIW,
Paul