Brass tumbling media

[DenverGP]

I had been using some "pet bedding" corn cob for all my pistol cases, and it worked good for me. Then I did my first batch of 223 cases, and spent the next several hours trying to remove corncob from the case necks with a pick. So I ditched my corn cob, and picked up a 25lb box of fine walnut media from Harbor Freight. Polishes just as good, comes out of the cases like sand, and my tumbler is a LOT quieter than when I ran it with corncob. 25 lb box of it cost me $20 with the typical harbor 20% off coupon.

[Great-Kazoo]

I had been using some "pet bedding" corn cob for all my pistol cases, and it worked good for me. Then I did my first batch of 223 cases, and spent the next several hours trying to remove corncob from the case necks with a pick. So I ditched my corn cob, and picked up a 25lb box of fine walnut media from Harbor Freight. Polishes just as good, comes out of the cases like sand, and my tumbler is a LOT quieter than when I ran it with corncob. 25 lb box of it cost me $20 with the typical harbor 20% off coupon.

We're paying approx $28 for 50lbs of 14/20 grit corn cob. No issues with case neck. Maybe too much lube, not enough time allowing the polish to mix with media before adding brass.

[DenverGP]

There wasn't anything sticky, just pieces of corncob that wouldn't drop out of the necks. I suspect the corn cob bedding I was using was just too large.

[theGinsue]

I feel your pain DenverGP. I bought a huge bag of cob media bedding material from a pet store a while back. It's considerably larger than the media made especially for firearm/ammo tumbling.

Finally used it to tumble brass & found about 5%-10% of my brass was so clogged with this media that I couldn't get the media out of the brass no matter what tools I used. I'm done with this stuff & will be offering it up to someone soon.

[DenverGP]

Yeah, gave mine away to the neighbor for her rabbit cages. Was amazed at how much corncob could fit into a 223 case.

[Jamnanc]

The stuff kazoo is referencing works well. Sometimes stuck in a flash hole, but put a universal deprime in station one and your good to go.