First batch of clean brass - I'm impressed
Just took the first batch (250) of once fired 9mm brass out of the tumbler. The cases look like they just came from the factory inside and out. The flash pockets and primer holes are clean as new - not a speck any where.
The next step is to dry them in the oven on low temperature for an hour or two.
The next batch of 40 caliber is in the tumbler now.