Casting for your 45's............you will need a LOT more lead than you have! Conserve the #2 and dilute it with pure (as said) that you should be able to find in most local scrap yards. Forget the COWW thing. That free-bee ended years ago. And unless you can buy COWW's for 20-30¢ a pound...they aren't worth all the mess and fuss you have to go thru to sort and re-melt them.
Start with a single stage press and leave the "Dillon magic carpets" for your more experienced days!!!!!! Learn why and how things happen and work with a single loading press B4 diving off that deep end.
The 45 long colt is my favorite cal to load and shoot in 5 different revolvers and carbines. Fun! I cast every standard weight of boolit from 160 thru 310gn for them. The heavier the better! Just started dropping 268gn HP's from a MiHec 4 banger brass mold. SWEET!
TG was my go-to powder in the past. Fast, clean, and not much needed. Just watch for those illusive double fills!!!!!!! Now I load and shoot only ETR7. Same load data, just easier to find! And cheaper.
And I powder coat all my rounds for no smoke, no sticky boolits and no leading.
Good luck!
banger