Thanks guys, but I already have the adjustable charge bar.
I actually prefer the idea of the fixed-hole disks mainly for the "guaranteed" repeatability of drops when used with the same powder during subsequent loads.
The reason I asked the original question is best explained by a real example:
Loading 9mm RNP's from RMR, I used two adjacent holes to get a powder throw of 4.42gr of HP38 with the .43 hole, and then got an HP38 throw of 4.64 with the next sized hole larger, the .46 hole.
The 4.42 gave me some stovepipes with two of the four pistols I shot it through while the 4.64 charge ran GREAT with all the pistols.
The thing is, I think that the 4.64 charge is just a smidgeon more than needed for good reliability, so I'd like to bring it down to 4.60 even, and just a little Allen screw tweak in the #.46 hole would allow me to get that.
What I'm wonder is if using the screw technique allows the hole to be just as accurate and repeatable as it was when it was just a hole.
As an aside, I'll mention that I am using the Bully bullet feeder adapter between the Hornady bullet die and the Lee 4-tube loader, and only the Lee AutodiskPro will fit in the press head and allow clearance to the bullet feeder.
Additionally, I have read too many comments about the Lee Micro Adjustable disk to want to mess around with it right now. I've got 3000 rounds I want to load in one batch and just want to get it done.
Vixty, I came across the blanks you're talking about and was actually thinking that drilling my own would be my second option if the "tweaking screws" didn't work out.
Thanks