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12-21-2011, 01:14 PM
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Cylinder rubbing on forcing cone K frame
Got an old pre war K frame shooter . Any way cylinders rubbing on the end of the barrel / forcing cone . Is this excessive endshake ? Can't find my Kuhnhausen book . I seem to recall probable causes are bent extractor rod / yoke or excessive end play . Help me out here as I'm having a senior moment guys .
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12-21-2011, 01:20 PM
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Wear on the yoke/yoke barrel can cause excessive end play and the issue you note. Don't worry about the extractor rod. A bent yoke barrel could cause the issue, but it's way down the list of probable causes.
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12-22-2011, 12:11 AM
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This is what Power yoke bearings are for. The only reason for the cylinder dragging on the barrel breech is wear on the yoke barrel resulting in excessive end-shake.
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Gunsmithing since 1961
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12-26-2011, 04:26 PM
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if its only a slight rubbing, one can 'stretch ' the upper crane leg ever so slightly, set the cylinder back a bit, very common issue with lots of years on the gun...........any GOOD 'smith or armorer can do this in a very short time. we stay away from shims in any duty or self defense gun...............
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dan
NRA Benefactor,PMA
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12-26-2011, 08:16 PM
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It's an old beater M&P 38 . My late Father found it in the trunk of a car he put a mechanic's lien on after the owner left it . It's just a plinker . I thought it'd be fixable on the cheap . It's not something to sink a bunch of $$$'s in .
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