Read every book you can find! That being said, I only have a Speer and Hornady manual and have read both. I can reload .223 for around $0.26/round 9mm for maybe $0.16/round excluding brass because I mostly use free range pickups. It all depends on where you get components. Berry's makes inexpensive pistol projectiles (most of the cost of the reloaded round). Eastman gun shows are a great place to get cheap components.