I have recently turned the necks down to .010 thickness on 10x fired lake city brass loaded and shot it fine. I neck sized it and when I was seating the bullets I noticed that there was no resistance and could easily pull the bullets out of the case . So did I turn the necks to thin or is my brass just worn out? ??? This is my first attempt at turning necks so I was kinda guessing as to what thickness to make the neck. I also did 250 virgin pieces of LC brass to the same neck thickness I am really hoping I did not ruin it.