The Lyman manual is my favorite for several reasons. First, they have one of the best how to sections anywhere. They also list preferred accuracy loads, and they use a variety of components. After the Lyman, I buy Nosler and Hornady manuals since those are my most used bullets. I use the online powder manufacturers data also. Now that Nosler has most if not all of their manual data on their site, I find I use it the most.
