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Thread: Short fatties vs long slender ones...

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  1. 07-03-2021, 03:50 PM #24
    grandpamac
    grandpamac is offline
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    Quote Originally Posted by GWH View Post
    Yes most people dont realise that for the exact same barrel length a saum or wsm type cartridge will have a greater length of rifling compared to a longer case such a a 7RM etc.

    This has to give a slight increase in velocity for the powder burnt.
    John Barsness calls the 7mm RSAUM a .280 double improved due to its identical capacity and ballistics. Just don't try and convince a .280 AI fan on this though and especially don't mention a superiority due to the shorter and fatter case.
    Grandpamac.
    GWH, Tim Dicko and Stocky like this.
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