Thread: If you ever wanted to know about corn cob grit for tumbling

If you ever wanted to know about corn cob grit sized for tumbling.

I happened upon this web site and it is really good at explaining grit sizes and the best grit (1014) for use in tumblers that clean brass casings.
http://www.greenproducts.com/corncob_products/

On this link they lay out the different grit sizes in language I could understand.
http://www.greenproducts.com/corncob_products/

And if you want a free sample use this link.
http://www.greenproducts.com/corncob...le_request.php

Now how about that!

Hack

Great find man! Have you ordered the free sample yet?

Originally Posted by Strycnine

Great find man! Have you ordered the free sample yet?

Nope, I already have 50 lbs of corn cob from another source. No place to store any more.

Besides, the next bulk buy I'm gonna make is walnut.

Hack

Ok was just wondering. How does corn cob work out for you?

I've been using walnut during my short time of reloading. Seems to do ok, but I have nothing to compare it to.

I think I'll go out to my shed and load up 50 or so .223 rounds using 64gr Win Power Points.

I use corn cob much more than walnut. The only time I use walnut is when I get some range brass that is real dirty.

My bulk 1014 corn cob (that I bought from Grainger's) polishes my brass to look shiny new - just like the stuff I used to pay an arm and a leg for. I do pour in a little bit of Franklin Arsenal case polish every 2 - 3 tumblings.

I don't have carbide dies, but after tumbling I can run my brass/nickel pistol cases up and down inside my resizing die without using lube (when I do, I use Hornady One Shot) - I figure its doing good to allow that.

Hack

PS, I don't load .223, but if I did I think I may use the corn corn grit one notch finer than 1014 - so it would more easily come back out of the case. Do you have that problem>

Maybe I need some of that corn cob so I can get mine extra shiny???

I use the separator that came with the tumbling kit and it seems to get the media out really well. I'd say 12 out of 100 might need the media knocked out the flash hole.

Originally Posted by Strycnine

Maybe I need some of that corn cob so I can get mine extra shiny???

I use the separator that came with the tumbling kit and it seems to get the media out really well. I'd say 12 out of 100 might need the media knocked out the flash hole.

I assume you de-prime before tumbling.

I leave the spent primers in, tumble and then knock them out, and seat the new ones, during the reloading process. I use my Hornady Lock n Load progressive press to do it. I've never had a problem seating the new primer.

Hack

I tumble first to clean the brass..........then I de-prime/re-size.......then tumble once more after re-sizing to get the lube off.

Originally Posted by Strycnine

I tumble first to clean the brass..........then I de-prime/re-size.......then tumble once more after re-sizing to get the lube off.

Oh, that makes sense.

I use Hornady One Shot - when I lube, that is. It works well and dries without leaving a residue on the case.

I just put some cases in a baggy, spray in one shot of One Shot and kinda shake/roll the brass around inside the bag. I take out the brass, wait about a minute and start reloading. Easy as pie.

However, the next set of brass I reload (for the same caliber, of course) doesn't get treated with One Shot. I've never had a case stick in the 1,000s of pistol reloads I've made.

Before One Shot I used to use the "ink pad" method with RCBS lube. Not anymore, I've found the One Shot method to be much better.

Hack

I use Walnut picked up from a pet shop with a little nu finish car polish.

For my one shot I got one of those kitchen strainers picked up from walmart. Its about 4 inches in diameter and 2 inches or so deep. I put in a hand full of brass and spray them, tenderly toss them and add a few more. I then set the strainer full of lubed cases beside my press. They go from strainer to press to loading block.

Of course I am extra picky about my shine. After tumbling, the sizing and triming I put them through the tumbler once again. The after priming and loading I tumble again for a couple of hours. My tumbler is a Thumler Rotating tumbler so it is very tender on the loaded ammo.