9MMX19 reloading

[DavidJayUden]

I'm not trying to put words in your mouth, but if I may summarize, briefly:
You increased the threads on the dies so they seat more deeply in the press, thereby giving better alignment of the bullet to the bore.
And you are concluding that this previous mis-alignment was the cause of the case rupture discussed in the original post?
Is this correct?
dju