Hi, Fairly new to reloading & have a need to load quite a few 223 rounds. Have Winchester, G.F.L, F.C, PPU, ADI, R.P & COO. The G.F.L cases seem to take the primers easily but some others don't, particularly the COO ones. Should I keep some & ditch some or chamfer the primer pocket of the difficult ones? Any advice appreciated.
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