I just picked up a Hornady Lock-n-Load Auto Charge Powder Dispenser yesterday. I haven't run the powder dispenser yet, but the scale appears to be accurate. I ran the calibration procedure according to the manual using the 10 & 50 gram calibration weights supplied.
Then I weighed two identical weights of a set I have that I calibrated when my job involved - calibration. These had been compared to calibration standards of known mass on an analytical scale accurate to a microgram.
I am satisfied that the scale is accurate to the tenth of a grain. We'll see how consistent the powder dispenser is.
Interesting. This is generally within the +/- .1 accuracy limit of the scale. +/- .1 either side. Does it produce low ES/SD results? I have an older Pact scale with the IR powder dispenser. It is also. +/- .1 scale but it is capable of getting me some pretty good results.