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Thread: Incremental load test anomalies

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  1. #10
    Member
    Join Date
    Apr 2017
    Location
    The 'Naki
    Posts
    2,599
    Quote Originally Posted by shooternz View Post
    It is the neck of the case there is only so much gas can flow through the neck of the case when the maximum flow rate is exceeded there is a bottle neck and the gas flow
    can't flow fast enough and starts to swirl slowing down the gas and drops the velocity, I did some tests years ago and found as the powder charge went up the velocity
    started to go backwards as much as 10fps for 0.5 grain increase .
    Thats very interesting, thks!
    I know a lot but it seems less every day...

 

 

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