Corn Cobb versus Walnut Shell media


January 9, 2011, 07:57 PM
What is the difference in these two in terms of their polishing ability?

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January 9, 2011, 07:59 PM
Clean corn-cob gives a shinier shine than walnut?

Walnut lasts longer (works longer when dirty) than corn-cob?

At least that's what I seem to remember.
I haven't used anything but walnut for years.

January 9, 2011, 08:19 PM
I have heard that corn-cod does produce a higher shine.

I've only used walnut (the cheap "Zilla" lizard bedding from the pet store) media and added a capful of Nu-Finish liquid car wax. The brass gets wicked (that means "very" for you non-New Englanders!) shiny. It leaves the brass with a slightly slippery feel.

Sorry I can't do an exact comparison but the walnut + wax does such a good job I haven't been tempted to try the corn cob.

Good Luck.


January 9, 2011, 08:22 PM
Walnut has always gotten the brass clean enough for my purposes (I shoot it) so I've never felt the need to try anything else. It ain't a beauty contest.

January 9, 2011, 08:24 PM
I have tried both and some name brand polishing media...I found nothing works better than walnut from the pet store with 1 or 2 capfuls of brass polish. I have ordered an ultrasonic machine so I will let you know how that works as I am always cleaning primer pockets manually and a quick brushing to the inside. I did not buy the "gun" brand ultrasonic as I bought one that will handle more at the same frequency and even has a heater for way less!

January 9, 2011, 08:31 PM
I have used both walnut and corn cob with brass polish and found walnut does a better job of cleaning black fouling off range brass and corn cob does a better job of polishing the case.

There for a time, I even tried mixing the two in different ratios.

Nowdays, I just use them separately. First running dirty range brass with walnut to clean. If I want shinier cases, then polishing with corn cob.

January 9, 2011, 08:39 PM
I mix the two half and half, and along with nu-finish and used dryer sheets, I like the way my brass looks

January 9, 2011, 09:33 PM
Corncob is better at removing case lube from sized cases. Walnut has more dust and tends to clump and stick to the lube inside the case neck. I run corncob and often put a couple cups of walnut media mixed in. Also for quicker cleaning and higher shine I use Dillions Rapid Polish in the media.

January 9, 2011, 09:39 PM
Both work very well. As said before, walnut seems to clean a tiny bit better and cc polishes a tiny bit better. BUT:

In my experience, warm water and Tide in a rotary tumbler, works better and faster.

January 9, 2011, 11:46 PM
As said, corncob seems to polish the brass more while crushed walnut shells seem to clean faster. I split the difference and use a 50/50 mix of each.

dagger dog
January 10, 2011, 09:45 AM
I'm with bds, the walnut works better for cleaning, then corn cob gives the polish, as a matter of fact I have 2 different containers and I don't mix the two.

I deprime the brass with a universal depriming die, the tumble with wallnut and a used dryer sheet to keep down the dust, when "clean" I put the batch in the corn cob media with a polish (Frankford Arsenal), to bing it to a "like new"shine.

Make sure to keep the dust down with used dryer sheets and wear a particulate mask when servicing the media!

January 10, 2011, 09:54 AM
I'll finally chime in and pretty much agree with everyone else here. Corn cob will give you the highest shine, walnut will clean alittle better and faster.

But it seems to me this new innovation of using S/S pins with a roller tumbler and liquid cleans the best and still gives a shinny surface is the way to go, also the media never wears out.

But then here I am 67 years old, sitting on 40 lbs. of 20/40 corn cob. Looks like for all intents and purposes I'm going to stay with corn cob.

January 10, 2011, 10:31 AM
Corn cob does an overall better and faster shine job for me than walnut. Walnut is more economical, so that's my go to. I flirted with a stainless/Thumler setup, but cost of mobilization wasn't worth it.

January 10, 2011, 10:33 AM
As you can see people have there own way of doing things when it comes to cleaning there brass. Some just like it clean and some like the bling,I just use cob media only.

The majority of my brass is what I shoot and it doesn't get that dirty in the yard landing in the grass,I just throw it in the tumbler primer in to clean it up a little before resizing,usually about 30 min is sufficient,then throw it back into the tumbler after sizing to remove any lube off the case. Afterwards I clean the primer pockets and inspect them for any small pieces of media that might have stuck in the flash holes.

As far as polish I add about two cap fulls of NuFinish car polish to my media,mix it in well when I start a new batch and only add more polish as needed which is about ever three or four batches of brass. A couple strips of used dryer sheet are added to each new batch of brass to remove various particles of powder residue and brass flakes to keep the media cleaner and last longer.

January 10, 2011, 03:12 PM
When do you use the dryer sheets? Do you put them in the vibratroy cleaner or in the tumbler/media separator?

January 10, 2011, 03:32 PM
In the tumbler while its running,I prefer the used ones,the wife keep me a good supply.

January 10, 2011, 09:56 PM
Put a capful of mineral spirits in your walnut and let it run for a few minutes before dumping your brass in. Gets the brass nice and clean and no dust.

January 10, 2011, 10:54 PM
Put a capful of mineral spirits in your walnut and let it run for a few minutes before dumping your brass in. Gets the brass nice and clean and no dust.

And if you use a cap full of liquid auto polish your brass will stay shiney longer as in no tarnish. I have brass thats 10 years old and still bright that has never been reloaded since I tumbled it.

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