I've been tumbling or vibrating for nearly 30 years. If the outside of the case is shiny I'm happy, my dies are happy. I'll decap rifle brass, especially BPCR stuff. With BPCR brass I wash and rinse, then dry in a warm oven after decapping and before tumbling. Pistol brass I just do a quick sort and toss them in the tumbler for several hours.
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.