bomadera Posted January 20, 2019 Share Posted January 20, 2019 What is the recommended jacketed bullet diameter for 9mm to get the best accuracy, .355 or .356? Thanks Link to comment Share on other sites More sharing options...
Steve RA Posted January 20, 2019 Share Posted January 20, 2019 I'd try both .355 and .356 for groups to see which is more accurate. With plated. coated or lead you can go as much as .003 over bore diameter to find which is more accurate in your barrel. Link to comment Share on other sites More sharing options...
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