For some reason I had an idea pop into mind today.
The idea is to make an auto powder dispenser that dumps direct into the case. Think of combining the RCBS chargemaster and a shell holder.
set your charge weight, plop in a primed case, pull out a charged case.
instead of a plate for the scale, you'd have a shell holder. After initial setup and calibration - An auto tare function when cases were swapped out would negate case to case variation. You'd need some form of powder funnel that the dispenser dumps into as well, and a way to adjust the height to account for different case lengths. maybe ultrasonic for the funnel as well to solve any possible bridging - but that might not even be an issue depending on the speed of the dispenser.
could perhaps speed up the process of metering those troublesome stick powders.
Thoughts? I think it would sell.