I’m a single stage reloader, so my system may be set up differently that people using progressive or turret presses.
First thing I do is deprime my brass, then put it in the wet tumbler. I like my brass clean like that before running it through my sizing die, so there is nothing on the brass to scratch the inside of the die.
Then I size the case and flare the case mouth.
Next, I put the sized and flared brass in the dry tumbler to do a final clean and polish.
Then prime, powder, seat, and crimp.
I am not I high volume shooter, for pistol I usually work in batches of 500-1000. It doesn’t bother me if it takes several days to get it done. Ive fine tuned this system to suit my needs over the years.
JTD