All my cases get a quickie bath and measured Trimmed if needed and champhered before resizing so I don't get dirt and other junk up in the sizing die. Once all the spent primers are out and they are all resized they get a real good bath and rinse, Put in one of those mesh bags onions come in then hung in my wood burning furnace room for a couple days. Next step is the tumbler full of no name rice to tumble shiny clean. No worry about contaminated powder or primers that way.
Then they get sorted by caliber and reloaded with the powder and bullet I have chose for that caliber.
Been using the same proven load for the 308 for 50 years and 45 years for the 243.
Al