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Thread: arrow spine

  1. #1
    Senior Member Breck's Avatar
    Join Date
    Oct 2008
    River ridge la.

    Default arrow spine

    When selecting easton arrow shafts is the higher the number means more stiffness in the shaft?

    I am shooting 340 spine I need to go stiffer is that a 400 spine or 300 spine .
    Last edited by Breck; 11-15-2008 at 03:34 AM.

  2. #2


    Easton use inches of deflection for the numbers, so a .500 shaft bends 1/2" when a weight is applied, to the center of a 28" shaft and a .340 bends about 1/3 " etc.

    So the smaller # will be a stiffer spine.

  3. #3
    Refuse to Follow !!! jds-1's Avatar
    Join Date
    Feb 2008
    Western Washington (Lacey)


    300 would be stiffer

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