Read as much as you can. The Lyman manual is a favorite of mine and since I shoot Hornady and Nosler bullets almost exclusively, I have their current manuals also. Youtube is also a great place to watch videos of setup and operation. One of the first things you will notice is that the manuals do not agree on powder choices, velocity, and loads. Not surprising since they are using different rifles and often different bullets. Go slow and build your confidence as you gain experience.
