No idea how long walnut media will last, current batch is several years old. I just clean it and add new polish now and then. I have a new bag of media around so someday I might just change it out before I forget where I put it.
Life Member NRA, TSRA
Smokeless powder is a passing fad! -Steve Garbe
I hate rude behavior in a man. I won't tolerate it. -Woodrow F. Call Lonesome Dove
My favorite recipes start out with a handful of used wheelweights.
Last edited by TXGunNut; February 16, 2013 at 08:27 PM.