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Old 03-13-2017, 08:08 PM
GUNMIKE GUNMIKE is offline
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cylinder gap on s7w 27-2 cylinder gap on s7w 27-2 cylinder gap on s7w 27-2 cylinder gap on s7w 27-2 cylinder gap on s7w 27-2  
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Cool cylinder gap on s7w 27-2

What is the specification for the s&w 27-2 for the cylinder gap? The question arises as there Is excess drag marks at the opposite end of the frame {area around the firing pin}. Is this data available from s&w?
I bought this gun recently and would like to correct any erred repair.
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Old 03-13-2017, 08:44 PM
Toolguy Toolguy is offline
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cylinder gap on s7w 27-2 cylinder gap on s7w 27-2 cylinder gap on s7w 27-2 cylinder gap on s7w 27-2 cylinder gap on s7w 27-2  
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Minimum cylinder gap for lead or lead and jacketed is .006. Min. for jacketed only is .004.
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Old 03-13-2017, 09:44 PM
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armorer951 armorer951 is offline
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cylinder gap on s7w 27-2 cylinder gap on s7w 27-2 cylinder gap on s7w 27-2 cylinder gap on s7w 27-2 cylinder gap on s7w 27-2  
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Front gage (front of cyl to barrel) spec is .004" - .010". (some say the max allowance is now .012")

Rear gage (breechface to rear of cylinder), or headspace spec is:

38, 357, 41, 44 - .060" - .068"
22 Magnum - .004" - .008"
45 ACP - .090" - .094"
45 Colt - .060" - .068"
38, 357 with cylinder counter bore (recessed) - .012" - .018"
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