For seating depth you need to find the lands with some kind of dummie round or modified case. Also take into account mag length. The book shows Sammi length.
The things you can't buy are most important like eyes. Read up on pressure signs and what case failure signs look like.
A good book will go into detail about these things. I can recommend Nathan fosters book as well. It's not a reloading manual but will tell you how to go about it.
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