Hi John,
I personally tend to favor depriming first with a dedicated depriming die that does not reshape the case. After depriming, I tumble the cases with SS media prior to inspection and resizing.
I have a few reasons for preferring this order. 1) By depriming prior to tumbling, the SS media does most (if not all) of the primer pocket cleaning for me. 2) By using a dedicated depriming station, then cleaning prior to resizing, I keep a lot of dirt and fouling out of my resizing die. Since the depriming die does not really touch the case, the dirt and fouling has little chance to damage it. 3) By cleaning prior to resizing, I have one additional opportunity to inspect the clean cases and find potentially dangerous faults or signs of weakness.
At first, I saw the dedicated depriming station as an extra step, but after committing to it, I find it not only produces better and more consistent cases, it doesn't really take any more time since I save much of the time I used to spend cleaning primer pockets individually. Of course I'm somebody who individually weighs every one my powder charges even when I'm reloading for a handgun so take my approach with a grain of salt (or a grain of Varget...)
I personally tend to favor depriming first with a dedicated depriming die that does not reshape the case. After depriming, I tumble the cases with SS media prior to inspection and resizing.
I have a few reasons for preferring this order. 1) By depriming prior to tumbling, the SS media does most (if not all) of the primer pocket cleaning for me. 2) By using a dedicated depriming station, then cleaning prior to resizing, I keep a lot of dirt and fouling out of my resizing die. Since the depriming die does not really touch the case, the dirt and fouling has little chance to damage it. 3) By cleaning prior to resizing, I have one additional opportunity to inspect the clean cases and find potentially dangerous faults or signs of weakness.
At first, I saw the dedicated depriming station as an extra step, but after committing to it, I find it not only produces better and more consistent cases, it doesn't really take any more time since I save much of the time I used to spend cleaning primer pockets individually. Of course I'm somebody who individually weighs every one my powder charges even when I'm reloading for a handgun so take my approach with a grain of salt (or a grain of Varget...)