Dirty case interior

sam menard

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I’ve been using Lyman Turbo Tumbler Media in the Tufnut variety and notice that, after tumbling, that it leaves a brownish/red residue in my cartridges. Would this residue impact the burn rate of my powder? Should I be concerned? Thanks.
 
That media has a reddish-brown dust added to it as a polishing agent. It works well and shouldn't cause any problem inside the case but can build up on the sizing die expander ball and cause issues eventually if you don't clean it. The dryer sheet idea works. I threw 4 new sheets in and lowered the dust levels noticeably but still had some. I don't use it now, plain walnut shell from Princess Auto with a dollop of NuFinish added is less expensive, cleaner, and works just as well.
 
... I don't use it now, plain walnut shell from Princess Auto with a dollop of NuFinish added is less expensive, cleaner, and works just as well.

Sheesh, I had no idea they had media. They show a couple of types available, I presume different size grit. Which one is best for tumbling brass?
 
I am going to get some W12 which is coarser then the W24
either would be fine, the 24 will be dustier

I use IOSSO polish.

They also have vibrating tumblers on sale (and media on sale) starting today
I ordered mine online and will P/u later in the week
 
Sheesh, I had no idea they had media. They show a couple of types available, I presume different size grit. Which one is best for tumbling brass?

I bought a bag of each grit (and blended them together) from Princess Auto a few months ago to de-lube cases in my FA rotary tumbler.

Untreated it works great..... and about half the price of Lyman's.

And yeah, a bit walnut dust inside the case is fine... reminds me of a video that F Class John made the other day where he fired cases that had the flash holes plugged with walnut...


 
That media has a reddish-brown dust added to it as a polishing agent. It works well and shouldn't cause any problem inside the case but can build up on the sizing die expander ball and cause issues eventually if you don't clean it. The dryer sheet idea works. I threw 4 new sheets in and lowered the dust levels noticeably but still had some. I don't use it now, plain walnut shell from Princess Auto with a dollop of NuFinish added is less expensive, cleaner, and works just as well.

I no longer use it, but perhaps that "reddish" powder was "jewellers rouge" - is actually plain old iron red rust - but was an additive at one time recommended to made the brass extra "shiny" from media vibrating. At one time I had bought packets of it to "rejuvenate" used vibrator media...
 
The shiniest brass I ever got was with fine corn cob media, a small bit of jewellers rouge and a tablespoon of paint thinner in my vibratory tumbler. If I let the tumbler run overnight the brass cases were so shiny they were hard to distinguish from nickel cases. Unlike wet tumbling, however, the interior of the cases and the primer pockets still did not get cleaned.
 
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That media has a reddish-brown dust added to it as a polishing agent. It works well and shouldn't cause any problem inside the case but can build up on the sizing die expander ball and cause issues eventually if you don't clean it. The dryer sheet idea works. I threw 4 new sheets in and lowered the dust levels noticeably but still had some. I don't use it now, plain walnut shell from Princess Auto with a dollop of NuFinish added is less expensive, cleaner, and works just as well.



You can also use reptile bedding from your local pet store, also crushed walnut shell. + Nufinish
 
Sheesh, I had no idea they had media. They show a couple of types available, I presume different size grit. Which one is best for tumbling brass?

Heck Bulk Barn used to have crushed walnut and corn cob. Because was used for small pets cages for bedding. Pet stores has crushed walnut as lizard bedding.
 
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