Hard copy I've picked up Speer 9-11 & 13-15, Hornady 10, Lee 2.0, Accurate Arms #2, Sierra , and various smaller pamphlets from assorted manufacturers and years.
Digital all the matter available in those 3 Marvin Stuart directories, Accurate Arms # 2 (2000) and the 2002 & 2003 supplements, Shooters World 2020, Lovex 2019, ADI 2016, Cartridges of the World 14th, Ammunition Making by G. Frost, Norma 2006, Western 2020, and various pamphlets, downloads from vendor sites for a specific bullet & cartridge (examples - Speer online data among others), magazine special feature articles across assorted years, plus earlier versions of various manuals.