My process is probably more involved than most. I don't sort by headstamp, but I do by caliber, and I tumble my brass by caliber. I have four tumblers, two Ultra-Vibe UV-18's, an Ultra-vibe UV-45 and a small Berry's. Three of the tumblers have 20-40 ground corncob, with Berry's Brass Polish, and one of the UV-18's has plain 20-40 cob with a small amount of car polish mixed in.
For the most part, I tumble with the primers in place, and after the first tumbling, they're then run through the plain corncob with car polish, which tends to remove tumbler residue and impart enough wax to inhibit tarnishing. It won't stop tarnishing, but it slows it down quite a bit.
Then I size and deprime my brass and clean the primer pockets. I made a tool from a yard sale drill motor which really speeds up the pocket cleaning, and I can clean 1,000 pockets in about an hour. I store my brass in large batches, mostly in 8 pound powder jugs with a front top cut out, leaving the handle. About 2,500 rounds of .38 brass will fit in a Bullseye jug. Since I load for 32 different calibers at this time, I have brass stashed everywhere, I'm afraid.
When I'm ready to load, I normally prime the brass in batches of 1,000. For this, I use either the RCBS, or Lyman, Ram Prime on one of my Rockchucker presses. This allows for precise primer seating, and nothing else is going on while the primer is being seated, so it's much easier to pay attention to each individual primer and case.
For a lot of my calibers, the primed brass is loaded on my Hornady LnL progressive press. Loading primed brass allows me to have a belling die in the #1 position, the powder measure in the #2 position, an RCBS Lock Out Die installed in the #3 position, so if a powder drop is light, heavy or missing, the Lock Out Die will stop the press from moving until the charge is corrected, or the offending case is removed. The #4 position seats the bullet and the #5 position applies the crimp. The loaded round is automatically ejected from the #5 position.
For short runs of special ammunition, I load the aforementioned primed brass on either one of my Hollywood Senior presses, or more likely on one of the RCBS Rockchucker presses.
At the current time, I have 3,000 .38 Special cases primed and ready to load. They would have been loaded, but while in Las Vegas at the SHOT Show, someone dumped a nasty bug on me, and I've been sick. I also hurt my back lifting a lathe onto my bench, and I don't heal as fast as I used to, so when these issues are taken care of, I'll load those primed cases over a period of probably two days, depending on interruptions, etc.
My process is certainly not for everyone, and I'd never advocate that my way is the only way. It's a process that I've developed for ME over the 56 years I've been reloading. I don't have primer problems, period. My round count is somewhere over 800,000 rounds of loaded ammunition at this time, but I don't want to take the time to go back through records and tally them all up.
On another note, I ordered a Springfield XDm in 10mm at the show, along with one of the slick little Ruger PC 9mm Carbines. I opted for the 5.25" Match model on the Springfield, since I have other 10mm handguns for carry purposes, should I choose to carry that caliber. The PC Carbine has an included insert that allows for the use of Glock magazines, and while I'm certainly no fan of the Glock, after being forced to carry a G-22 for the last year and a half before I retired, it does allow for some options for increased magazine capacity. MagPul is making some slick 27 round Glock 9mm magazines that sell for $19.99, and I ordered 4 of them before I left for the show, so they were here when I got back home. It makes for a more compact package than my 9mm AR, which uses 32 round Sten gun magazines. My Beretta CX4 Carbine is limited by the magazine availability, and it has one of the worst triggers I've ever encountered on a rifle.
I haven't left the house since getting home from Vegas, but I intend to wring out these new additions next week.
Hope this helps.
Fred