Re: Walnut and comet cleanser in tumbler
"...............but I don't like the idea of cleaning brass with corn cob or walnut shells. Both of those contain a lot of fine dirt and abrasives."
What happens is the vibration acts as a separator. All the dirt and fine particles end up in the bottom of the vibratory cleaner bowl. If you are careful when transferring the cases out of the cleaner machine, the dust and fine particles stay in the bowl. I then use the Dillion rotary basket which tumble the brass to remove the remaining media out of the cases. In 25+ years of using this system my dies show no sign of scratches. And I really stretch the usage of the walnut shell media running it literally for years without changing it. I can not do that with the corn cob media as it doesn't clean but polishes and looses even that ability rather quickly.
But hey, we all get to choose. As long as the cleaning method does not harm the brass (as some unknown chemical in cleanser, or soap may) all is OK , I guess.