Christ. Think you've got enough ammo stored up, Jimmy?
I've got three turrets for my Lee press. One's set up with dies for .45 Colt, one for .45 ACP, and the third for .45-70. So at least I can switch between calibers easily. But it still takes about a minute per round, manually placing the brass and primer in their holders, three pulls of the lever, manually placing the bullet, etc.
Of course, the nice thing (besides the cost savings) of loading my own .45 Colt is that I can make the loads much hotter than the ammo you can buy in stores. I've got a Ruger Vaquero single-action revolver, which can stand up to loads that are as potent as a .44 Magnum. The hotter loads are a little more fun to shoot.
I may have to get back to reloading .45 ACP too, since it's running $18 a box now. 9mm, 5.56x45, and 7.62x39 are still cheap enough for now not to be worth my effort, thanks to the amount of surplus east-bloc ammunition on the market.
--mark