The powder measure bushing would not fit in the powder measure housing hole.
The hole had a burr and they blued or nitrated or blackened right over it.
So I made a video of me deburring the hole and sent it to RCBS customer service so their quality control would get some feedback.
I wanted another RCBS powder measure mounting plate, but did not want to wait for it to arrive, so I made one, quick and dirty. The 13/16" drill did not make for full contact 7/8-14 threads in the plate, but good enough.
With the #2 bushing it is metering 2.55 gr of my density of Bullseye as accurately, maybe more accurately, as I can measure it.
I wanted this for 146 gr hollow base wadcutters loads for 38 special.
https://www.youtube.com/watch?v=_kmU4QfMqTs