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Depriming prior to tumbling

I've been reloading for some time.  And I'm seeing two ways of reloading.  Depriming prior to cleaning casings in the vibratory tumbler, the other reloading without depriming prior to cleaning.  Is there any downside to the later.  It does save time not having to deprime, but is there a negative to doing it this way?

If you deprime prior to tumbling you will have to pick cleaning media from every primer pocket/flash hole. A real pain. Tumble them them then deprime and reload. If you put a fabric sheet or two in the tumbler you will keep down the dust some and keep the media clean. The only time I would deprime first is if you are using liquid cleaners such as in an ultrasonic unit.

 

Mark

I have tried both ways and prefer to tumble with spent primers in place. Otherwise, I get tumbler media lodged in the empty primer pocket (in some cases, not all) that has to be inspected for and cleaned out, thus adding extra time / steps to the reloading process.

Tuff choice, depending on the media you are using in your tumbler. I use corn cobb and found that the media gets stuck in the primer pocket. Pain in the rear. So for now, I clean first befor size/deprime. You could go a step further and use a hand held primer pocket remer tool after cleaning, size/depriming. This will give you more consistant primer seating depth.

Creator

I tumble the brass with primers in the case, then size and deprime. I have found I can use "lizard litter", a walnut media ground finer than regular grades of media and it falls freely from the primer holes. Haven't seen one stuck in the primer hole yet. Put some polishing goop in it and the cases will shine up nicely.

I deprime then ultra sonic clean. 

Vibratory case machines with media, do not clean primer pockets. A ultra sonic machine will. I use the CV-750 to polish loaded cartridges.

There is no reason to clean primer pockets any more.

I like to deprime, then wet tumble. Brass is not only spotless inside and out, but there is less airborne dirt(powder/primer soot) while reloading, so your machine will stay cleaner. No tumbler media or other dirt around the shell plate. My wet tumbling process takes 2:15 to wash and dry, not including depriming. Again, while wet tumbling, there is nothing getting airborne. No dust around the area where you are tumbling.

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