Discovered on 12/14/2011, some of the Auto Disk and Pro Auto Disk Powder Measure units have left the factory without the drop tubes fully seated in the Powder Measure.
Symptom: the disk in the Auto Disk Powder Measure extends beyond the face of the powder measure (travels too far)
Fix: to correct this issue, turn your powder measure upside down and place the drop tube opening against a table edge. Drive the drop tube in using a wooden dowel and hammer or a plastic mallet.