well this a very good question that will give you many answers!
Here are some more popular manuals in no particular order:
1. Hornady
2. Sierra
3. Speer
4. Lyman 49
5. Barnes
I also use loaddata.com as well
When you get them dialed in you can then use a chronograph and get speeds and really dial them in. That is where some real fun starts!
You will get more ideas but the Lyman manual is a really good one for a start.
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