Better, but not perfect.
And new problems that weren't there before.
So it arrived on my doorstep today. I unpacked it, set it up, and ran it threw a few rotations with no hulls, primers, or powder.
Immediately, before putting any hulls in, I notice a new problem I never had before. The shell plate is not rotating all the way to the new index position. That is, there is a little spring-loaded "catch" on the right side at the pre-crimp station that is supposed to pop into place and prevent reverse rotation of the plate (I assume.) Well, the shell plate isn't rotating all the way around and into position, probably 6-7 times out of 10.
On the up-side, every time I put a new hull into the deprime/resize station, it will move enough that the shell plate pops into its proper position.
I suspect this is an easy fix....
As to the original problem, the primer jamming as the shell plate rotates and drops the new primer into the priming station hole;
Six jams out of 500 cartridges made. Like I said, better but not perfect. Kinda like me trying to break 100 straight...close but never perfect.
Now another new problem that I had not experienced before. I had 4 instances (out of 500) of the primer dropping down the tube and into position, but then popping back out and turning upside down or out of the hole in the shell plate on the upstroke.
All in all, not nearly as frustrating jams were, but still...