if your doing small batches corn cob should last years. i do a lot of brass cleaning thousands of cases i last replaced my media two years ago.
you can find corncob and walnut as various forms of pet litter media.
if i could run steel pins dry i would be interested in that. not a fan of liquids in case cleaning drying is a pain. just my opinion
"Gun control: The theory that a woman found dead in an alley, raped and strangled with her panty hose, is somehow morally superior to a woman explaining to police how her attacker got that fatal bullet wound." — L. Neil Smith
The problem with being stupid is you cannot simply decide to stop doing dumb things...
"I crapped my pants to avoid the draft!!" -Ted Nugent