My old Hornady dispenser can do roughly 5 per minute depending on the powder. Some meter better than others, and when it starts getting low, I often get overcharges that require starting over.
I've had issues with SB 6.5 sticking to surfaces due to static as well. The kernels in that stuff are tiny and they like to jump around sometimes. That dryer sheet will come in really handy and thanks for the tip @willfrye027.
