Its always been good advice to cross check loading manuals. Its what everyone suggests. Its smart really it is.
however, when I decided to take up cast bullets for rifles, I saw the Harris data, and was always baffled by it. Never could find anything from a powder company to "prove" the safety of it.. Finally a PDF download link gave me the 1980 edition of the lyman cast bullet book, and got my cross reference data for Unique, red dot, so im happy.
But what about bullseye? Or for creating relatively slow loads using small bullets, like the "famous" roundball load of 5-800fps from a .308 or 8x57"