I don't know what book you are using. You mention the Lee manual, which some deride. I think the Lee manual is very useful, and I have #1 on PDF, and #2 hardcopy. I reference both regularly.
Get yourself a Lyman Cast Bullet Handbook, either #3 or #4. It uses different powders than some other manuals.
Casting opens an entire new aspect of loading, and allows you to move from reloading to handloading. If you go slowly, and pay attention, you will start developing "off book" loads safely.
The panoply of projectiles (boolits, if you will) available to the caster are vast in comparison to store-bought. One can tailor loads to one's wishes - be it a heavy for caliber bruiser, or a light casual shooting load.
I regularly shoot 9mm at ~950 - 1000 fps, and the brass just drops in a pile at my feet.
I can load 44 Mag at 800 fps, and my wife can shoot it as long as she pleases (and cackle with her friends -"I fired a 44 Mag yesterday, it was no problem at all!").
Enjoy yourself in the new book you've opened. I'm certain you'll start saving money very shortly.