Shoalbass,
A good friend of mine regularly shoots and carries a steel frame Charter Arms Bulldog. For the last eight or nine years the load he uses is our .431"-240g WFNPB bullet seated over 6.4g Unique, WLPP and Winchester brass. It has proven wonderfully accurate in the little gun, very managable in recoil and stunningly effective on such critters as coyotes, feral dogs and close ranging whitetails.
His gun is still relatively tight (about as tight as I think they ever were), shoots well and digests this load very nicely. However, his gun is one of the all steel frame models, and not one of the alloy frame guns... not sure how much difference that would make, but I do mention it here for reference sake.
Hope this helps!
God Bless,
Marshall