Microgoove. I had to look at the barrel to verify.
Brad Benevolent Overlord and site owner Staff member Jul 4, 2016 #61 Microgoove. I had to look at the barrel to verify.
Will Well-Known Member Jul 4, 2016 #62 Mine has Ballard rifling and measures .4325 right at the end of the throat where the rifling starts.
Brad Benevolent Overlord and site owner Staff member Jul 5, 2016 #64 Have not used an of that yet. Yet.
