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  1. #1
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    Quote Originally Posted by darkker View Post
    Load however you want to load, But for the facts, you need to know some things.

    Measuring the case head expansion is better than nothing, but NOT any semblance of a reliable gauge of actual pressure; Less reliable than Copper Crushers.
    Copper crushers, which are VERY carefully calibrated, have been shown to report variances on the order of 10,000 psi difference with the same reference load, at that cartridges operating pressure.
    That is why Piezo electric, and now strain gauges are used.
    How un-reliable? Dr. Denton Bramwell has done numberous honest scientific tests on measuring case expansion.

    Assuming that there is ONLY one metalurgical recipe for cartridge cases, is not true. IF they did stick to the metals handbook for cartridge brass, then tensile strength is @ 70,000psi. So when you see case expansion, guess where your pressure are approaching?? Then there is the Assumption of this cartridge brass, which is NOT care
    fully calibrated, somehow will report pressure closer than Copper Crushers.

    $0.02

    Thanks ! What's your IQ.......do you Work for NASA

  2. #2
    Basic Member darkker's Avatar
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    HA! No I don't work for NASA, and can't remember staying at a Holiday Inn...

    Just don't believe in voodoo.

    Here is one of Denton's articles:
    http://www.shootingsoftware.com/ftp/...%2019%2004.pdf
    I'm a firm believer in the theory that if it bleeds, I can kill it.

  3. #3
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    Quote Originally Posted by darkker View Post
    HA! No I don't work for NASA, and can't remember staying at a Holiday Inn...

    Just don't believe in voodoo.

    Here is one of Denton's articles:
    http://www.shootingsoftware.com/ftp/...%2019%2004.pdf
    Read this people ^

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