As I stated before in some of my other post I'm new to this so I have another question. I have a rcbs rock chuckler kit and it came with the Speer loading book #14. I've been reading the book and what i get is this. Tell me if I'm right or wrong. Since I got the Speer book. And with that data that it gives me, I have to use Speer bullets. It also says to use cci primers so I have to use that brand too. And the powder that's the only choices it gives. I can pick any powder listed right? And if I say wanna use hornady bullets I need a hornady load book right? Or can I use any brand bullets? I just can't go to the store and pick any bullets, any primers and any powder and reload. Well what I'm trying to ask is do I have to stay with the bullets the load book gives? And if I want to use other bullets I have to get data for that specific bullet? Right or wrong?