My wife and I are into IPSC/IDPA/CAS. I load .38, 9mm, .45 ACP, .44 Spl., 44-40 and .44 Russian. We shoot indoors weekly during the winter and outdoors when the snow is off the ground.
Depending upon the season and the matches we attend, we burn up to 400 rds per week easily, sometimes more. All reloading supplies are bought in bulk.

When I do a run in a specific calibre, I do a minimum of 500 rds, 100 per session. I've learned that is my limit before my attention wanders.

My original 450 is dedicated for .38 Spl./.357. All other calibres on a 550B with removable tool heads. Even so, you have to change the primer seater from small to large as required, change the shell plate and locator pins and install a tool head with the required dies already adjusted.

This takes time. I feel I need another 550B that will be dedicated to the .44 calibres.

Anyone who does not value his time is more than welcome to grind out rds on a single stage press. I would rather shoot than reload.