PO Ackley put out a two volume book set. Handbook for Shooters and Reloaders.
Understand, now, that the reloading data in it is relatively OLD, but the information in it is still some of the best to this day.
Certain fella by the name of Roy Weatherby learned as one of Parkers assistants...so this should tell you a little about this man.
And, of course, you have his semi-proprietary line of wildcats...the Ackley Improved series...
the book was originally written in 1966 but its still available
MTCW