Come on people at least READ what the OP wrote!
If you want to answer a question you should actually READ what the OP wrote...
"...dropping from one hole to another yielded me a .6 to .7 gr difference."
Obviously he is talking about the Lee Auto Disk Powder Measure which has 4 disks each with 6 holes.
Dropping from one hole to ANOTHER HOLE there is a 0.6 to 0.7g difference.