Sorry, forgot a point about the lightweight revolvers in large calibers... They are too much for the average person to handle and require a lot of dedicated practice to make them useful. I have a number of friends with serious addictions to big-bore handguns capable of doing amazing things with them... They are the extreme exception and I see the other end of the curve at the range regularly proving they should move up a bit more gradually.

Saw a showboat shooting a big one from the deck of a commercial fishing boat. Revolver left his grip and rotated backwards at least twice before entering the ocean... His girlfriend was not nearly as impressed as he had envisioned it prior to shooting.
art