I have ascertained the issue may be the dies by making use of them in my D1050 Instrument head, then resizing numerous 9mm cases like only one stage push. I am only using the press for resizing, and take away the resized cases as soon as the shell plate advances. https://9mmcase42962.livebloggs.com/42808993/getting-my-9mm-reloading-brass-to-work