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Thread: Subsonic 308 project

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  1. 25-03-2019, 07:32 AM #33
    Flyblown
    Flyblown is offline
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    Quote Originally Posted by aetchell View Post
    Did some testing of the 150gr .308 casts today. We clocked them at an average of 1140fps and using algebra and and some magic we worked out the coefficient to be approx 0.15

    Drop was about 37inches at 188 yards.
    Handy info!
    Just...say...the...word
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