Tumbling primed brass?🤫

[Coon]

I talked to a fellow the other day who said he sometimes tumbles brass after hand priming. It got me wondering, is this OK? Crazy, or normal?

[Gunnyart]

It seems like a bad idea all the way around.
Your not getting the primer pockets cleaned and running the risk of damaging the primer.

[critter69]

I myself wouldn’t do it. I worry about the media sticking in the hole as it is. But I at least can hold it to a light and see it’s open.

[Texas Grown]

I would probably try to be polite. And find someone else to talk to.

[WyoBull]

Bad idea. The internal side of the primer is exposed and tumbling media can eat away at the propellent. I have been reloading for 40+ years and have never even heard of anyone doing that or recommending it.

[howabouttheiris]

If it is clean enough to prime, why run it again?

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[Coon]

If it is clean enough to prime, why run it again?

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He was telling me about finding a bunch that he had primed and stored and forgotten about. When he found it, it was dingy looking. I told him I'd have loaded it as it was. Dull finish on the brass won't hurt anything. But he has already tumbled it when he told me about it.

[critter69]

De prime it first, then tumble and re prime, with new primers of course. How many cases we talking about ?

[Coon]

He said it was a couple of hundred. He "knows what he's doing", so I'm out of it. I wonder how it's going to shoot after he loads it. His big deal is he thought he had found a big prize but wanted it to look shiny. I told him I thought he was nuts but he acted like it was no big deal. That's why I posted to begin with.

[muzzlebrake]

Never

[andre3k]

I tumble loaded pistol ammo in corn cob all the time. It removes the case lube in about 15 mins. No issues and factory ammo is tumbled before its boxed. It doesn't degrade the powder, that myth has been busted many times. I wouldn't tumbled primed cases for fear of getting media stuck in the flash hole.

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[bbqfan5909]

Heck no! I wet tumble with stainless media.

[Zmaxhunter]

Sounds like a an easy way to create hangfires and squib loads.

[Brute Killer]

Yeah, a good way to get gunk in the flash hole. In my opinion.

[muzzlebrake]

I tumble loaded ammo or all calibers but never primed empty cases. Some small amounts of Media will get stuck in the primers guaranteed.