Okay, I was going to test my first new reloads today at Guns & Leather. After going over what I did and the data I used with Mark Crabtree, he discovered that I had made a mistake in reading the data, and I decided to get a bullet puller and start over. Mark also recommended using different powder than I was using, so I bought some Alliant Unique powder.
So, I get to setting up the Lee Auto Disk and start checking charge weights on a digital scale. The Speer manual recommended a starting .40 S&W charge of 6.2 grains of Unique for the 165 grain jacketed bullet I am using. So, I looked in the Lee manual to find a disk setting that matched 6.2 grains of Unique, and the Lee Auto Disk Capacity chart on page 708 of the manual shows that for Unique, a .66 cc disc should throw 6.0 grains. The overall question is, has anyone here found the charges thrown by the Auto Disk to throw lighter than listed charges in the manual?
So I change disks up to a .71 cc, then a .76cc to finally arrive at thrown charges of 5.7-6.0 grains. This is a much different weight than the Lee manual says should be thrown with that disk for Unique, so I am going to await the advice of someone here before I give that bullet puller more exercise! Also, if 6.2 grains is the starting load, is 5.7-6.0 grains close enough for practice ammo and normal cycling of the battery?
The digital scale is brand new, and since each bullet weighed 165 grains on the scale, this doesn't seem to be part of the problem. I also checked the adjustment of the Powder-through Expanding die in case that could have been a factor.
As always, thanks for your help, and major public kudos to Mr. Crabtree for his advice and assistance in keeping me out of my own way!!