2-1/2"
John-I have reloaded for many years but hardly experimented at all. I have heard/read that roll crimps are lower pressure than fold. which seem to make sense. I ahve loaded 16 gauge fold crimp 2-1/2" and 2-5/8" cases with success using recipes from the 16 gauge reloaders group or Ballistic Products manuals.
I may roll crimp eventually, but I'd also like to just fold crimp 2-1/2s. So what you say is that the pressure is the same using 2-3/4" load data including the same wads, in 2-3/4" cases.
Mike
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