Quote from Reloader on April 19, 2017, 5:57 pm

Does Dillon have a recommended measurement for a proper light roll crimp using Dillon dies and copper plated 9mm bullets? I know the light crimp should only remove the bell from flaring, but I thought I read somewhere on this forum a recommended measurement variance between the case diameter before the crimp and the case diameter right at the crimp. Thanks in advance.