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11-28-2021, 12:46 AM
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Member
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Join Date: Feb 2004
Location: Central SD USA
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Barrel length; S&W 640 no dash
What is the barrel length on a S&W 640 no dash .38 Special? I’m not finding anything definitive online. Is it 1 7/8” or 2 1/8”? I’ve ordered one online and have not received it yet so I can’t measure it. Thanks in advance!
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otis
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11-28-2021, 01:22 AM
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US Veteran
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Join Date: Nov 2009
Location: Fort Knox, Kentucky
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The barrel is 1-7/8”
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11-28-2021, 01:50 AM
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US Veteran
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Join Date: Nov 2011
Location: La Conner, WA
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They went to 2.125" when they made the gun a 357 Mag. That was dash 1, which I have. I think I would prefer the no dash, as I don't shoot Mag rounds from my snubs.
I think it was to get good extraction for the longer case length. Doubt it would make much difference with respect to ballistic performance. About 12% longer.
73,
Rick
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11-28-2021, 02:40 AM
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Moderator
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Join Date: Jun 2007
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Agree, 1 7/8" - except for the 3". 
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Alan
SWCA LM 2023, SWHF 220
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