Ballistics by the inch

.40 S&W

Here is a post pertaining to the testing and results obtained for the .40 S&W caliber.

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November 26, 2008 - Posted by | .40 S&W

2 Comments »

  1. Thanks a bunch for your research. I have a 40S&W CX4 Storm with a 16″ barrel. I was just wondering if there is likely to be a significant difference between a semi auto weapon like the storm and something more like a revolver or lever action weapon with no slide and similar barrel length? I guess I am asking if the slide action of an auto can rob velocity?

    Comment by Guscx4 | February 3, 2009 | Reply

  2. Gus, I’m no expert, but there probably is some loss due to the operation of a slide in a semi-auto. If you compare the “ideal” readings we got with the T/C to the data we got for the actual real-world guns, you can see some evidence for that.

    But I think the loss is probably greater with a revolver, due to the cylinder gap.

    Cheers!

    Jim D.

    Comment by James Downey | February 9, 2009 | Reply


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