Modern Reloading by Richard Lee is the best manual I own. It has through exsplanations of all aspects of the reloading process. It has data for more cartridges than any other other manual. Each cartridge's data has a drawing of the cartridge giving all dementions. The .223 cartridge for example has 16 differnt measurements of the loaded round. Case,bullet,OAL,and headspace+12 other measurements.