I've seen many posts referring to very inconstant throws from Lee's adjustable auto disc, using light charge weights for pistol. Recently loading 45 acp, using Titegroup, under 200gn LSWC, I was having the same issue when starting at 4.8gns. The auto disc was throwing everything from 5.3 to squibs. To make sure everything is apples to apples, This is using the newest update kit, with the red hopper that twists to shut off powder flow and mounts with thumb screws for quick removal. I noticed with the set up that the oblong shape of the adjustable disc, sits mostly to the front of the powder through tube and subsequently sits primarily to one edge of the opening of the sweeper gasket on the bottom of the hopper. This was causing a less than consistent fill into the disc. With the way the hole in the bottom of the hopper is offset, I was able to turn the hopper around an have the hole in the bottom of the hopper centered over the adjustable disc evenly resulting in very consistent throws. This would not work with larger charge weights but works great with the lighter ones.
I don't know if this is design purpose of the offset as the only directions I've found are on how to replace the parts with the new ones,but if it is in print somewhere I'll gladly wipe the egg from my face. Hope this is helpful.
I don't know if this is design purpose of the offset as the only directions I've found are on how to replace the parts with the new ones,but if it is in print somewhere I'll gladly wipe the egg from my face. Hope this is helpful.