I use a 5" X 5" Ziploc container, about 1 1/2" tall. A teaspoon of black BB's and half a teaspoon of powder. 50 to 100 bullets at a time depending on caliber. Shake about 30seconds to a minute. Can get about 4-5 batches before I have to add another 1/4 teaspoon of powder.
I pick the bullets up up individually with CLEAN fingers, taping once on the bottom of container
to shake off excess powder. Stand up on oven tray covered in non-stick aluminum foil.
Bake 20min at 400degrees, dump straight into water bucket. Warmed on top toaster oven to start.
Just like CW says.
The way that works for Me.