Craig N Posted February 10, 2014 Share Posted February 10, 2014 Just how far can you go with reaming a KKM barrel in 40 S&W? I know STI guns run out to 1.180 and I was thinking about taking mine out to 1.140ish to see if it fixes some of the problems I have. Rounds fit fine in the stock barrel but don't fully chamber in the KKM. Quote Link to comment Share on other sites More sharing options...
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