I was installing primers into 200 rounds of .223’s. 190 are Winchester and 10 are marked F C. The Winchester’s installed fine but the F C would not take a primer. I measured the primer pocket and found they were all over the place. 4 were in tolerance but on the edge of the low side. The other 6 were from .003 to .006 out of tolerance on the low side. Does anyone have an economical and quick fix for this problem? If not, I am just going to throw them away. Not going to waste time and effort for 10 casings.
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