Gents, Im not an expert on black powder burn rates for the revolver.

I need a 45 ACP load (to be used ex-changeably with 45 auto rim) .452 230 lead RN
to be loaded with 2F German Schutzen powder for a Webley Mark 6 (able to take 12-13,000 CUP).

Any charge suggestions or if this is the right powder to replicate 19th century ammunition with?