I do my stuff in batches.
I'll resize a bunch of brass. I'll flare the case mouths on a bunch of brass. I'll prime a bunch of brass. Not in the same day, usually, and store the brass temporarily in old coffee/mixed nut jugs till I'm ready to put powder and bullets in them.
When I'm ready to "load" them with powder/bullets I do that usually around 100 to 150 at a time (put the powder in 50 cases, examine powder levels with a small bright light, set that 50 aside and do 50 more. Sometimes another 50 or 100 and then start to seat bullets.
I used to seat/crimp same step, same die but last year I bought some crimp dies (Lee) and added another step in my reloading. Have not yet seen the groups tighten up more than before so that may not continue. But it does slow me down some.
With pistol ammo, single stage press (or the Lee turret used like a single stage press) I've gotten 250 in an afternoon. Not being an ammo burner those 250 rounds will last a few range trips as I usually shoot more than one load and more than one pistol. Sometimes more than one caliber.