.454 Casull-loads for heavy bullets?

[Selmer]

I'm having fun playing with my .454 Casull in my 12" Encore, but I'm having trouble finding load data on bullets over 300 gr, especially over 330 gr.  I'm using H110, HS-6, Accurate #9, and Unique.  So far I've been educated guessing on my heavy bullet loads with some input from sources, but does anyone know of any confirmed data for heavy bullet loads?  I'm understandably a little nervous about using loads that haven't been tested in other guns, and at known pressures and velocities, Steve's reloading pages have a few loads, but no pressures or velocities, and loadswap.com over at Beartooth carries some stuff, but is there anything more out there or am I hitting unpublished territory?  The bullets are all cast, all from Lloyd Smale at this point, love those bullets Lloyd!  Any help I can get is greatly appreciated.
Sincerely,
Selmer

[VSSF]

26.5 gr. of H-110,1.75 OAL,WSR primers.Shoots really good out of my Raging Bull,8 3/4".And A-frames will kill anything.

[Duffy]

Selmer I'll tell ya what I'm up to but in that closed chamber I would back it off some.  Currently in my SRH I'm shooting a LBT LFN that when sized weighs 333 grains. My load so far is 30 grains of H110 in Starline brass with a FED GM match small rifle primer. NOW these are leaving at around 1500 and the cases eject easily. What I want to know is what Vel are you guys getting from your RB's and Encores? I belive I have a excessive cyl/bbl gap (.007) and am losing quite a bit from that. I have gone up to 30.5 but that's all that will fit in the case and vel is still only about 1530.
Would like to hear what some of you are getting for vel!
And I know what you mean about finding loads, anything above a 300 grainer is hard to find and with the rifle primers its hard to tell just how far you can go. I guess hard extraction is the next indicator.