Quote:
Originally Posted by alde
What about the diameter of the shell in relation to the extractor and ejector? The 9mm shell is quite a bit smaller in diameter than the 40/375 Sig.
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I thought this would be a problem as well. However, it seems that S&W uses the same breech face and extractor for the 9mm guns.
I just measured the external chamber dimensions of both 9mm and .40S&W factory barrels. They are identical. Therefore, the 9mm and .40 slides are the same as well. This is why the extractor doesn't need to be changed. It must just move out a little more when shooting .40S&W.