LYMAN GREEN CORN COBB

chief38

chief38

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About two years ago I switched over from using Walnut Shells and Dillon Case Cleaner to using the Lyman Treated Green Corn Cobb Media and would never go back. The stuff just keeps on working even though it has all but lost its green color. Not only do the outsides of the Brass look like new, but it does a much better job on the interior as well. It only took me 30 years to discover it but better late than never as they say. I do not even know how long Lyman has made this product, but next time you need some tumbling media you should try this stuff out. NO NEED for any additives as the Lyman Green is pre treated. By the way, there is no dust like when pouring the Walnut Shell media back into the Tumbler. :)
 
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In a vibrator I also use green corn cob media. I also keep the used/worn out media to fill shooting bags. I just don't use it very often anymore (over 4 years) since I went to stainless pins in a rotary tumbler. My 2 B-I-L's both still use green corncob on their pistol and 223 cases. Just don't reuse it after doing fresh fired Black Powder cases! Ivan
 
I use the Lyman Treated Green Corn Cobb Media until it turns black. Then I put some Nu Finish car polish in it and let it run for about a half hour, without any brass cases, so that the Nu Finish can distribute itself evenly through out the media.

This regenerates the media and it can then be used for a lot longer.

At the end, I just sprinkle it on my grass.

Sure, you can get cheaper stuff from the pet store, but it doesn't clean like the Lyman Green stuff does.

..
 
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Yep, been using Lyman Green for 20+ years. Definitely the best of the pre-prepped media I have used. Nowadays I use it to pre-clean cases in my vibrator tumbler for and hour or 2, deprime and the wet tumble for a thorough cleaning job on my brass.
 
I switched to it about four or five years ago and really like it other than it's "rotting vegetation" smell when you first pop the lid on the tumbler. I find it to be a little dusty the first few uses, a fine dust that sticks to the brass. Yes the media does stick in the flash holes but no problem there as I resize and deprime after tumbling, the depriming pin does a fine job of getting rid of it.
 
I wonder if this is a different product than I tried once. Years ago I had a jug of Lyman green media, I hated it. After a couple hours, my brass looked just as dirty as when it first went in. I switched to media that a local guy sold, he ground up his own corncobs. Used to get it at gun shows. It worked a lot better than Lyman, and a cap full of mineral spirits did a lot to keep the dust down.
 
Maybe they really improved the stuff 'cause I can only say it's GREAT - but admit I have only used it for 2 years now.
 
Since reading about it in a forum, probably this one, I started putting used dryer sheets (3 or 4) in my Dillon small tumbler to keep the dust down and the media cleaner. Works very well. They are really black after tumbling a load.
 
I still have bags of treated corncob media I bought at a gun show in Forest Park GA in 1996.
I have gotten a lot of use out of it, since most of the bags are still unopened.

I also use Harbor Freight coarse walnut. It doesn't clog flash holes like corn cob.
Nu Finish and dryer sheets get the brass shiny and keep the dust down.
 
I went with the stainless steel pins and a Harbor Freight Dual Drum rotary tumbler. Cleaned brass is bright, new looking inside and out, flash holes always clear. I keep a magnet around when rinsing (keeps pins from the drain), put the pins back in the drums 'til next use. Recipe:one pound brass, one pound of pins, four drops Dawn liquid soap, one-eight teaspoon Lemi-Shine, three hours in tumble, rinse, sort, done.
 
I thought about wet tumbling, but I already have two vibratory polishers and a lot of media.
 
I bought the Franklin Arsenal wet tumbler earlier this year and use it a lot, but not exclusively. It does a great job of cleaning, but a bit of a PITA to use for smaller loads of brass. It does get all the crud out of the inside of the cases though and brings them almost back to brand new condition. If you deprime first, it even cleans the primer pockets. It also strips every bit of oil or polish off the case, so it makes sizing a little harder. It's not a problem with pistol cases generally, but you might run into problems with longer and larger cases such as 44 Mag or bigger. And drying the cases is a pain too.
 
chief38 said:
About two years ago I switched over from using Walnut Shells and Dillon Case Cleaner to using the Lyman Treated Green Corn Cobb Media and would never go back. The stuff just keeps on working even though it has all but lost its green color. Not only do the outsides of the Brass look like new, but it does a much better job on the interior as well. It only took me 30 years to discover it but better late than never as they say. I do not even know how long Lyman has made this product, but next time you need some tumbling media you should try this stuff out. NO NEED for any additives as the Lyman Green is pre treated. By the way, there is no dust like when pouring the Walnut Shell media back into the Tumbler. :)
Click to expand...

+1 Great stuff! :)
 
Another use for the used media is as a case filling buffer in target loads.
You can tell exactly which one it is by the smell of it burning.
The walnut stuff when burned a bit smells a little like a certain recreational substance
and can generate some stares at the indoor range.
I have gone back to the walnut and since I deprime after vibrating I don't notice the charge holes being blocked.
For projects where I do get stuff in the holes, I have a teensy crochet hook that I poke out the bits with.
For many years I actually cleaned with a mix of the 2 Lyman media.
I must say; the Lyman Turbo 600 cleaner I have used for 30 years is still going strong
and works well for 50 cases at a time.

===
Nemo
 
re: " the Lyman Turbo 600 cleaner I have used for 30 years is still going strong and works well"

I couldn't afford the one I wanted 30 years ago so got the Lyman 1200 "until I can afford it"....mines still going strong too....

although a double or triple hand full of 38s seems to work just fine.

Don't know what this 'dust' mention may be, my old medium coarse Harbor Freight walnut shells don't seem to have that happen.

Biggest down side, was a few years ago I kept getting cherry pits in the 38 cases, resulting in bent decap pins....didn't realize my lid on the nut shells was off, and the mice had affinity for bringing in the wide cherry pits....

I'm on my last dose of the media now, bought that 25# box for 9.99 sometime before the Y2K turmoil.

Someone suggested something that sounded good here recently but I seem to have misplaced the link.

I don't deprime until after vibratory clean. Can't afford the new tumbler/pins although a buddy has that set up & it does a fine job.

I'd like to see the Greet Cob stuff, as I never did get any decent cob cleaning, even the stuff with the red jewelers rouge in it....and THAT was some dusty stuff right there.
 
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