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Check my optimal spine

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    Check my optimal spine

    Can some check my build to see if I’m with the optimal spine range, my computer is down and can’t run my OT2 software.
    Gold tip X cutter 7.8 grains per in at 28.5” (222 grains)
    Nocks, bushings, and vanes (5, 17, 18 (3x6))
    150 points and 30 grains behind it (180 point weight
    60 lbs at 30.25” draw and 18 grains on the string
    Should be around 440 grains total to get me around 280 FPS for ASA

    Thanks for any help and Merry Christmas

    #2
    What rig?


    Sent from my iPhone using Tapatalk

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      #3
      Halon x comp

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        #4
        A 350 or even better 340 spine will tune very well for you based off your variables. I see the optimal dynamic spine around .336.


        Sent from my iPhone using Tapatalk

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          #5
          Thanks. Bad that out the xcutter is it’s a 250 spine. May look into 22 series and add some front weight

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            #6
            I shoot a 350 and similar to you

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