What about books with load data... any recommendations?
Best book out there on casting is the Lyman Cast Bullet Handbook (#3 or #4) It has a bunch of load data in it as well as the theory, nuts, and bolts of casting. Strongly recommend it.
The Cast Bullet Association and CastBoolits.com are two of the top sites on the internet for cast bullet (boolit) information. You could spend several days just reading the articles dealing with casting. Also, do a search on the name "Glen Fryxell". He has done a bunch of articles that are absolutely top notch.