I'm trying to load some 9.5g of Unique in my Square Deal B set up for .44 mag. Small charge bar is in. After getting the measure to throw real close to 9.5 as weighed on my RCBS electronic scale, I decided to throw a couple of check charges to make sure I'm close to 9.5. Next throw was 10.1 and then 9.7.So I decided to run 10 cases threw just the powder die and see what the weighed. The next ten cases ranged from 9.1 to 10.2, and that is just not acceptable.
I called Dillon and they said to wipe the inside of the powder measure and all components with a dryer sheet, so I did.
Next 5 throws went from 9.6 to 10.3, still not acceptable to me. So I decided to try some 2400, because we all know that Unique, as a flake powder, doesn't measure all that well. The 2400 on 6 throws went from 16.6 to 17.3. Again this is not acceptable.
I checked my scale with the check weights and all seems normal with the 200 and 500 gram weights. Perhaps on light charges the scale has gone south?
Dillon gave me an RMA to return the powder measure for their inspection, but before I did that I thought I'd call RCBS today and talk to them about their electronic scale. This scale is over 30 years old and has given me trouble free service thus far.
Any suggestions would be appreciated.--Shuz