I've got the Model 629 Mountain Gun (.44 magnum) with the 4" bbl.
Very nice revolver, but the more I look at it, the more I think it would be PERFECT in .41 Magnum.
I'm surprised S&W doesn't make one. They did a run of Model 57's in the Mountain Gun configuration, but I just prefer stainless for something I'm actually going to carry in the field.
Mike