question for Rick, Rich, Hugh and others that have twisted on a barrel or two...

calibrator · 05-26-2013, 07:38 PM

Haven't done any Lugers, but I have done a few S&Ws. The Luger barrel has a shoulder that appears to be what defines the timing when it contacts the extension. I would be surprised if taps and dies were available in that pitch. Standard taps and dies are ground to differing specs and are graded as to % of thread engagement. I've run taps and dies through new nuts and bolts and am often surprised at how much metal is removed sometimes. A situation like that would likely change the timing. If I were doing this swap, I think I would just clean both threads with a fine wire brush and use something to keep the threads from galling.

Joe

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05-26-2013, 07:38 PM	#2
calibrator User Join Date: Feb 2009 Location: Cave Creek Posts: 340 Thanks: 67 Thanked 272 Times in 109 Posts	Haven't done any Lugers, but I have done a few S&Ws. The Luger barrel has a shoulder that appears to be what defines the timing when it contacts the extension. I would be surprised if taps and dies were available in that pitch. Standard taps and dies are ground to differing specs and are graded as to % of thread engagement. I've run taps and dies through new nuts and bolts and am often surprised at how much metal is removed sometimes. A situation like that would likely change the timing. If I were doing this swap, I think I would just clean both threads with a fine wire brush and use something to keep the threads from galling. Joe