You know what everyone so far has missed?
A reloading buddy or mentor. Did you know that a good mentor will cut your reading and choices and component selection time in more than half? Did you know a mentor could help you set up your press and dies, and have you kicking out QUALITY reloads, without any waste in time or components?
Did you know if you start off with a stick powder, you will probably need a powder trickler to get more consistent loads? If you start off using a ball powder, you wont need the trickler if you have a good powder measure! In some guns ball powder makes a lot of noise. In other guns it is no louder than the stick powder. Did you know your powder selection will also likely determine your primer selection?
Reloading manuals are "reference" books. They are not bibles nor cook books. They DO NOT have the recipe for your gun. They can help you get there, but you have to do all of trial and error yourself.
Most manufacturors now days use shooting "fixtures" to tailor their loads. These are usually bolt actions bolted to a bench with removable barrels. They will describe their barrel, twist rate, primer used, and the length to which they loaded their ammo. The fixture stays in place and they fire X number of shots down range into a paper roll. No target, just holes in paper that they measure for group.
Some of the manufacturors will still use a specific firearm and they do a pretty good job describing the gun, but still, their recipe is tailored to that gun. By reading several different manuals, you can get a broader spectrum of what components can do by specific caliber. Barrel length, primer used, etc will make an impact on how the "recipe" may or may not work for your specific firearm.
Here are a couple examples of disclaimers and notations in loading manuals. These are available on-line and are excellent opportunity for you to gleen important reloading information without having to spend $$ to get it.
Good luck with your new hobby. It will be easier than picking the first lure to try on opening day.
Steve