I have searched and researched - here and elsewhere - without finding enough information that was clear enough for me to be able to work from, so here's a brand new topic!
In my first foray into coating my cast bullets, I wound up having a big problem. I couldn't get an even coating using #5 plastic containers, black Airsoft BBs and high quality powder (from Smoke). I wound up doing several passes before the coating was even enough, which meant that my final, baked bullets were WAY oversized.
Now that I have a chance to get back at casting, I want to try it again, but I want to do it right - as in get a solid application in one pass that doesn't build up so thick I can't use my push through sizer (from NOE) to size them.
What do I need to start using a vibratory tumbler to coat cast boolits? I assume the tumbler has to be really, really clean from any previous media, but other than that, what do I need to look at? How long does the tumbler run, and how much powder do I use for a given number of bullets?