What is your process you use to avoid case head separations? My Marlin bolt action in .308w has only neck sized cases used in it after the first firing. Those cases have been trimmed and annealed twice. I have reloaded those cases to the point that I am about to break down my loaded rounds and begin anew with better record keep for every new bag of 50 winchester brass I open. Seeing how I neck size only, what would you watch for on a case needing discarded? How many loads near max are you getting with neck sized only brass? Has anyone here had a case separation? details?