I used to load 9mm about 3000 at a time, and .45s about 1000 per run. Kept count for a while, but the loads rarely changed after the first year or two, so the records aren't all tha good afterwards. Had plenty to do otherwise! Round counts now are way down. Have run about 400 .41 mags, 500 .44 Spl, and 7-800 .44 mag loads this year. .45 ACP? Not much more than 300 rounds, probably. Have loaded no 9s at all. and haven't shot much of them. Awaiting the return of the rebarreled 9mm and 10mm 1911s from the gunsmith. He's good, but, like most, way behind!
ETA: Oops, make that 600 .45 ACPs. 300 .45 Colt. It's still a pitifully small number!