^^this^^
As MostlyLeverGuns has stated seating & crimping in one step is easy enough, once you get the die properly adjusted. That takes a little time and IS NOT something I like to do often. Ninety five % of the time I’m loading the same weight and profile bullet, weight and brand of powder and have settled on one brand of brass. Thus removing most of the variables that can screw up the finished ammo.
With enough turrets / or die heads I can have my dies preset and locked in so changing the cartridge I want to load is a matter of swapping turrets / heads and running a few test loads to verify everything is where and what I want. Also gives me the chance to check consistency of charge weight and crimp tension. Once I’m good to go I still check every tenth charge weight, OAL and crimp tension, even when loading on a progressive.
I also mark five loaded rounds with a slim point sharpie, then cycle them through my semi-autos (with safety engaged) several times to confirm my crimp is tight enough to prevent the projectile from being pushed back into the case. To me this is critical especially when seating and crimping in one operation.
All this checking and QC does add some time / effort to the reloading process, but since I’m loading 500 or 1,000 rounds at a time thoroughly checking every tenth round isn’t a big deal.
Not compared to blowing up a firearm.
An after thought.
I too find live ammo when recovering my brass at the range. I treat it as an unknown risk and always pull it down to salvage the primers, brass and lead content of projectiles.