Mine is still Mag as Im shooting mostly sub-sonic with cast bullets, but have loaded up some snotty, long seated jacketed to see what it would do. I can get low end 357Max performance that way. My heaviest jacketed have been the std. 158gr. soft point revolver bullets though the lonnggg throat can take more. My lightest jacketed was some 115gr. 9mm pistol bullets take worked fine too.
As to cast, my chamber is such that with mixed headstamp brass I can use a maximum dia. of .360 (extractor barrel), but a .359 would be ideal in fully fire-formed brass (this is the way it is done to determine what dia. to use). I have used 148ish gr. WC's thru 170ish gr. SWC's and at sub-sonic they are quiet and pleasant; I call them my CB 357 loads. Ed Harris uses the same (google him up and/or see here:
http://guns.connect.fi/gow/ed.html) and they basically replaced my 22RF this last year in the depths of 'the shortage'.
Do not try to use .357 dia. cast bullets unless you enjoy getting leading out of a barrel. Softish lead .358 may be OK with fast powders as they may bump up enough, but I recommend you go straight to .359 and do not resize cases that are fired in your chamber, just decap, slightly flare, recap, powder charge, seat a bullet and go.
I do not have a bug hole group pic to show, just can tell you it goes where it is pointed everytime as long as I do not mess up.
FWIW, the 357Max RIFLE chamber reamer available here has the right leade angle to improve the bullet entry into the rifling and reports of improved accuracy are many. If I needed the extra case capacity I would certainly do it. Thus far having loads and cases that fit both my revolver and rifle suits me fine.