Ok to tumble with unfired primer?

Jeremybj

Sergeant
Full Member
Minuteman
Jun 13, 2011
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Council Bluffs, Iowa
Ok, now that I got my brass gritty look problem solved. I have about 300 brass primed, trimmed, chamfered, and deburred brass laying around. Can I stil them in the tumbler to shine them up with the primer like that? Or is that a bad idea?
 
Re: Ok to tumble with unfired primer?

Very bad idea.

Don't do it, as the main problem would be the tumbling media getting caught in the flash hold. You don't want ANY crap in there, nor do you want any of the dust or smaller particles inside the actual primer.

Leave it as it. What is the problem with the brass now? Why would you want to tumble it again? To remove the lube, or another reason?
 
Re: Ok to tumble with unfired primer?

B.S, it will be fine ..... at least in my experience. I bought a lot of stuff with about 800 primed 9mm cases that were nasty. I tumbled them and picked about 20 out with walnut media stuck in the flash hole to test. All went bang, so I loaded the rest without any problems. Your results may vary, but I say tumble away.
 
Re: Ok to tumble with unfired primer?

I used to wonder about media stuck in the flash holes. I finally did a test and tried groups with plugged flash holes, without, and mixed. It does make a slight difference, so now I take the time to poke the media out of all the flash holes.
 
Re: Ok to tumble with unfired primer?

Good decision. To be honest I had a lot of brass in different stages of "process" and I mistakenly ended up tumbling some that I had primed. Just dumbed aa big bunch in the tumbler and turned it on. Big mistake on my part.

I don't care how long you've been doing this crap,...you can always make mistakes. That was certainly one of mine. I heard a big "POP" as my head came out of my A--!!
 
Re: Ok to tumble with unfired primer?

My final step after loading a batch is to wipe each round down with a soft cotton cloth that's dampened in rubbing alcohol. This removes any foreign matter, fingerprints, etc., that might contribute to tarnish, and ensures the round is wearing no lubricant when it's chambered.

While I hear/read a lot of reassurances that tumbling loaded ammo is OK, my personal preference is to hand wipe the rounds, and accept what remains. They're gonna get tumbled after firing anyway.

If there's significant corrosion still present, that's what steel wool is for. After steel wool, alcohol is needed; as most steel wool comes from the factory with preservative oil incorporated.

Performance outweighs aesthetics in my book.

Greg
 
Re: Ok to tumble with unfired primer?

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: AlliedArmory</div><div class="ubbcode-body">It would be ok to tumble AFTER they are loaded, but not before. </div></div>

There have been incidents where tumbled ammunition have caused detonations of firearms. The powder breaks down or the coating comes off the powder dramatically increasing the burn rate. Personally, if its too dirty I would break down the ammunition and reload the case after polishing. Otherwise I would shoot the ammunition as is and polish the empty casings.

good luck

Jerry