Just got an IBM delivered today from CMPicon. Nothing special, just a run of the mill racker. Anyway, while I was cleaning her up, I found the most crooked rifling-line I have ever seen. I assume that someone tried to counter-bore it or that it was done when it was re-crowned.

Has anyone ever seen a crown this messed up before?


I am thinking about keeping it just for the novelty of it. It gauges at a 1.5, and it appears to to be straight enough to be safe. Anyone want to guess as to how accurate it is going to be?
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