I've loaded some 44 Spcl. using Unique & Power Pistol for moderate speed rounds. Original/factory 44 Spcl. are pretty weak some I'd think you'd want to improve on that to get the most from your 180 JHPs? Never tried the powders you mentioned for it though.
FYI: Handloader #236, Handloading the 44 Spcl. - Brian Pierce had some good data in it.
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