You'all are right. Apparently RCBS bought the powder measure from Ohaus.
I remember now that a few years ago in a move, I got the powder hopper crunched. Some way got to the fact that they were made by RCBS after I bought mine.
At the time, probably 1986, RCBS had already discontinued the model I had and could not help me with a hopper. I improvised a MEC powder hopper.
This one, the Du-O-Measure, has two separate meters, one for less than 15 grains and one for 15 to 100 grains.
It is completely different than the RCBS Uniflow.
I appreciate the suggestion as to how to get a rough setup. That would be as close, or closer, than the chart for a starting setting
Thanks