[F/V Icy Swan]

I am new to loading 40, but load for 32, 38, and 45. People tell me 40 is tricky. I have access to a fair amount of 200g cast Colorado Bulttet FP bullets. But I can't seem to find a recipe for this particular bullet in my reloading manuals. I prefer using Clays, 231, Unique, or Bullseye powder if possible.

Any suggestions on loads for this bullet or where to fine safe loads for it? Thanks.