Some of you may know that I've been using rice to tumble my brass with fantastic success for many years. The article on that is found here: http://www.primalrights.com/library/articles/clean-brass-with-rice
The only issue I've run into is that the rice is often too large and gets stuck in .17 and .20 caliber case necks. The cases pack with rice but it's ultra-difficult to get out.
I've solved this problem by getting a grain mill and running a coarse grinding op on a batch of rice. This single batch of ground rice will be good for many thousands of cases! You could use this same process to make your own custom media out of nearly anything compatible with your grain mill.
The only issue I've run into is that the rice is often too large and gets stuck in .17 and .20 caliber case necks. The cases pack with rice but it's ultra-difficult to get out.
I've solved this problem by getting a grain mill and running a coarse grinding op on a batch of rice. This single batch of ground rice will be good for many thousands of cases! You could use this same process to make your own custom media out of nearly anything compatible with your grain mill.