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Old 12-23-2011, 12:32 AM
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Default Model 36 Barrel to Cylinder Gap

I have a 3" Model 36 the has a measured .011" barrel to cylinder gap. Is it safe to shoot with that much gap?
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Old 12-23-2011, 12:37 AM
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That's certainly on the upper end of tolerance, but current factory spec allows up to .012. You might lose a little velocity, but nothing you will notice. Assuming timing and alignment are good, it should be safe to shoot.
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Old 12-23-2011, 05:33 AM
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Not a safety hazard, and the reason it is "within spec's." is becasue S&W raised their B/C gap tolerances not that long ago. It used to be that .007" was the max, not the .012" they quote you now. In my personal opinion, I think it is too much and would pass on a revolver greater than .006 - .007" B/C gap.

My feeling is that anything larger than .007" will cause excessive velocity loss and spitting, but I guess the Factory has trouble keeping the gap consistent, so they raised their acceptable tolerances.

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Old 12-23-2011, 07:55 AM
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Short answer it's safe to use, the 38 spl is a very low pressure cartridge today and is tolerant of a wider B/C gap.
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Old 12-24-2011, 12:56 AM
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Thanks everyone!
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