I have this issue with my Springfield 1911/9. it has a very tight match chamber. I pretty much cull all the foreign brand brass. I use an older set of RCBS dies with zero chamfer, sizer touching the shell plate with a bit of cam over. I still get about 1% that won't fit a case gage or my chamber. Those go into a box for my Glocks. A pass thru sizer might help, but not willing to go the extra step, yet.
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NRA Cert. Inst. IDPA CSO
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