Timing for the Ammo-plant is everything.Close enough is no good.Good is not perfect. This is how to get perfect timing.

I bought a #16 shell plate and pushed the detent ball in until it just touches the sub plate. I then trimmed a .223 brass down to the shoulder and a 380 case and cut 1/4 of the case away and driller the primer pocket out 1 drill bit larger than a primer. Then all is needed is a old .45 bullet seating die, and play-do.

Mount the shell plate and put the 380 case in to adjust primer. You can see if the primer come up threw the over sized pocket. If it off, adjust the left pawl until it comes up threw the primer hole with out touching the case. Now that is perfect.
Now to adj. for the dies. Put he .223 case in and the shell plate. Fill the seating die with the play-do and smooth it off. Insert the die in the press and raise the case up to the play-do just touching it. Then remove the die and look at the impression. You can now use the right pawl to adj. it until it is perfectly centered. Your timing is now perfect.