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Thread: Case cleaning question. rifle cases

  1. #21
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    Quote Originally Posted by Flash View Post
    What happened was the old data was done using lead or copper crushers to measure pressure.

    When they went to Piezo for pressure, they found there were some major pressure spikes that can't be picked up using the old crushers, so some of the manuals revised some of their loads downward.
    And attorney's got involved in reloading.....

  2. #22
    Senior Member Flash's Avatar
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    Quote Originally Posted by Delw View Post
    That explains the difference. Thank you very much.
    what do you mean by crushers? I thought they used pressure barrels to test loads. too be honest I never paid that much attention to it however
    They used pellets of lead or copper in the pressure barrels. The amount of measured crushing translated into pressure, sort of like lead hardness and BHN.

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