Q: Walnut media - how do you tell when it's spent?

add car polish etc. every so often
use used Dryer sheets every so often

Change media when it's black- black (instead of brown) and leave a ring around the top

i used the same media to clean 3k of range pickups and was black and leaving a ring around the top (and this was after cleaning other stuff)
 
Does the walnut polish pretty good? Or is corn cob necessary? Also, would you tumble live ammunition in it?

I use both together.... 50/50

Another tip I had a buddy tell me to try was to toss in a used dryer sheet
Also go check out your local pet store, look for ground walnut shells in the reptile section, it is used for bedding for certain reptiles. It is cheaper than buying it from a gun store in my experience.

i don't buy it. Using A variety of powders and running ammo for 200+hours in a tumbler showed zero change in powder structure when viewed at 75x magnification.http://www.ar15.com/forums/t_1_5/98...torture_test__UPDATE__fired_rounds_in_OP.html

^^^ I do everything here. No dust, no problems, very low cost.
 
I have been using crushed walnut for about 6 months and haven't changed the media yet and it has seen a lot of action. Once a month I cut up 2 dryer sheets and throw them to collect the dust and after there out a little squirt of new finish car polish and good to go.
stainless wet tumbling may be the way to go but I'm not about to spend big dollars to clean brass. The old boys used to just wipe it off on a rag and they didn't have any problems.
just my $.02
 
Just to add to be careful that the polish or wax you use contains no ammonia. Ammonia weakens brass.

Nu Finish car wax (in the orange bottle) is safe, as is all the brass polishers from the majors (Dillon, RCBS, Lyman, etc...). DO NOT USE BRASSO
 
I mainly use stainless steel wet tumbling, but i'll throw in my two cents like others. I clean my dry media, there's no reason why you can't.
When I dry tumble, I use 50% walnut, 50% corn and clean the bowl regularly. Every 15-20 sets, I will wash the media - 6 gallon pail, warm water and a drop of Dawn dish detergent. Rinse thoroughly (2-3 times) and then drain. Leave for 2-3 days on a towel on a table. When dry, run through with a few drops of Nu-finish car wax for 30 mins before adding brass again.
 
50 pound bag of crushed walnut shells from PA has lasted for a long time. I have used it to clean up thousands of rounds of tarnished surplus ammo, gave some to a nephew who uses it for his pet lizards terrarium and it works as a 'softer' abrasive when media blasting. My old Lyman Turbo 3200 holds a lot and rarely needs cleaning when the dryer sheet trick is used.
 
Brasso is fine to add to your tumbling media. The quantity of ammonia in the small amount you would add to a tumbler load isn't enough to damage the brass. The media will eventually start to take much longer to clean the brass. This would be a good time to replace it. The cost is minimal if you buy in bulk.

I have switched to stainless pins and no longer need to replace my media. I already had a rock tumbler that I was using with walnut. I find that it is a much cleaner process in several ways:

1. No dust. All the crud remains in solution and gets dumped down the drain.
2. No stray media particles. The few SS pins that get spilled are easily picked up with a magnet.
3. Brass is cleaner to handle. Walnut or corncob tumbled brass can look shiny, but it will turn your fingers black when you are reloading it.
 
I wouldn't take this advice.

tumbling live ammo breaks down the powder inside the round and will cause pressure issues.

I learned this from this source: http://ammosmith.com/

No it doesn't, instead of being an ignorant liberal like (insert words here) read the reply below.......

i don't buy it. Using A variety of powders and running ammo for 200+hours in a tumbler showed zero change in powder structure when viewed at 75x magnification.http://www.ar15.com/forums/t_1_5/98...torture_test__UPDATE__fired_rounds_in_OP.html
 
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