I was wanting to know which books will give me the data I need to be safe, WITHOUT extrapolating. I wasn't sure if manuals give exact data for specific setups, since I have seen references to using "cast data for bullets that look like yours" and "matching jacketed load data for similar profiles".
In answer to your question, there is a lot of exact component matched data for the more popular name brand bullets, and those bullet makers publish load data manuals that mostly focus on their bullets.
General reloading data sources, such as power mfgs will require more extrapolation, but usually list more popular bullets.
When you get into cast bullets, it will all be extrapolation, because each bullet maker can vary greatly even with the same bullet, and most offer little or no load data. Box lead bullets like Speer and Hornady offer are soft cold swaged lead, much softer than what most people cast with. Lyman sells reload equipment, and sell far more casting equipment than anybody else. This is why the Lyman manual is praised for it's cast data. Their data is based on bullets from their molds, cast with materials they offer. They also offer data for a large selection of popular manufactured jacket bullets, and that's what I'd recommend, and before buying powders and 30-06 bullets, so you can choose bullets and powder listed as opposed to choosing a manual that has your bullets and powder.
The how to section of Lyman's manual is great. I used the Speer #9 data manual way back when to get stared, and its how to section was far more helpful to me than the entire ABCs of reloading book that didn't have load data.
I also recommend sticking with one DATA manual to get started, or you'll be totally confused, since none of them agree on much of anything. you can buy the 2nd manual when you run across something not in your first manual.