Whats difference in 340 and 400

Discussion in 'General Archery Forum' started by mx309, Mar 3, 2008.

  1. mx309

    mx309 hoyt alphamax 32

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    Whats the differance between 340 and 400 carbon? the diameter or wall thickness? If so which one ?
     
  2. OA3D

    OA3D Member

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    without more info I'm going to say spine difference. The 400 will be weaker and prolly lighter than the 340.
     

  3. jdawg240

    jdawg240 BOWNUTS

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    A 340 is stiffer spine than a 400. Less flex
     
  4. QSA

    QSA One eyed/Gutless wonder

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    An most of the time it is thicker the stiffer the spine. But when buying arrows some company's use the higher the number the weaker the spine. So use the lower number as the weaker spine. So check before buying any new or used arrows.
     
  5. red44

    red44 Senior Member

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    I think if you look at them, most use the same nocks and inserts, so the inside diameter might be the same, but the wall is thicker and therefor, the outer dimeter is different. May vary manufacturer/manufacturer.
     
  6. Ronhop

    Ronhop RIP

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    What brand of arrow ? Sounds like you're talking Easton but you should add more detail to your question. Good question, you should just elaborate some more...

    Ron
     
  7. sqwert

    sqwert New Member

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    Spine rating....

    or stiffness of the arrow. The number is the amount of flex in the shaft, when a weight is hung in the center. The 340 flexes .340 " .400", so a 500 is .500 or 1/2 "

    Easton uses this for arrow spine , but some other companies use other designators, it can get a little confusing. :noidea: