The lovely thing about .45acp brass is the mixture of small & large primer. I'm almost of the mindset of buying 1,000 pieces of StarlineBrass (new). Load that up and shoot. Then reload.
You want to learn some valuable lessons? (grin) Reload .45acp with zero experience!
I know TWO sources where you can order 22LR as low as .13 cents a round (shipping varies but with bulk purchase you end up paying less than .01 cent per round in shipping).