I know there's not alot on here about 45 acp but I recently found something out that if you reload for it you should be aware of it. There's alot of factory brass coming through now with small primers instead of large like it's been for a hundred years. Brings your progressive press to a screeching halt! I have been using the same pile of brass for ages but recently got some newly fired brass from a relative and was very surprised to find this. Took me a while to figure out was going on.Just a warning,sort your brass carefully!