When I have a special handloading project, which I often have, I reach for Handloaders Digest first. You can get all the editions fairly easily and inexpensively now. The depth and breadth of handloading specific information contained in these books is astounding.
Started in 1962 and still being produced, this is the place to look for information on things like making your own dies, swaging your own jacketed bullets, what is the best powder measure, How far to seat bullets in the case and much much more. Each edition has different information and each is a treasure.