I have ascertained the trouble is the dies by making use of them in my D1050 tool head, then resizing a variety of 9mm cases like a single stage press. I am only using the push for resizing, and remove the resized cases when the shell plate developments. Using this https://9mm-reloading19528.livebloggs.com/44202005/getting-my-9mm-reloading-brass-to-work