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Let's talk spine..

Discussion in 'Tech Talk' started by Josh/OH, Aug 20, 2011.

  1. Josh/OH

    Josh/OH Die Hard Bowhunter

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    Alright gentlemen (expression used VERY loosely!).. I'm switching back to CE Maxima Hunters. I've played around with some cheaper Eastons (Backdrafts) because my step mother/duaghters gifted them to me for father's day. The free Tracer nock must have "wowed" them. Regardless, I've shot Maximas in the past and they've grouped better for me than any other arrow to date.
    So the question is this: I shoot a Bowtech Alle at 62# and 28.5" draw.... according to the pro shop, this puts me right at the border between the 250/350 series... I believe at the top edge of the 250 model's suggested use. I've been shooting 100 grain BHs/FPs, but would have no issues going to 125 grains. Which series should I be running through my bow, and with what grain of BHs/FPs??
     
  2. Backcountry

    Backcountry Grizzled Veteran

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    350's without a doubt. They should shoot 100's or 125's
     
  3. gutone4me

    gutone4me Grizzled Veteran

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    X 2 ^^^ :tu:
     
  4. kskcheche

    kskcheche Weekend Warrior

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    To make it tune out you can adjust the arrow length and draw weight.
     
  5. cvick48

    cvick48 Weekend Warrior

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    i have about the same setup and i use 350's with 100 gr. FP
     
  6. Josh/OH

    Josh/OH Die Hard Bowhunter

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    That's the direction I've been leaning. Good to have it confirmed... much appreciated guys
     
  7. KodiakArcher

    KodiakArcher Die Hard Bowhunter

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  8. Windwalker7

    Windwalker7 Weekend Warrior

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    Let me tell you of my experience. I recently bought a left over Diamond Black Ice FLX.

    The Birth certificate states it is at 61.9 pounds. My DL is 29".

    I had 10 Maxima 250's. So I used those arrows with 100gr tips.

    Things were great until I tried shooting Broadheads. (Slick trick magnums)

    The ST were hitting about 5" right at 30 yds. I tried slight adjustments to the rest but got very little improvement. I suspected too weak of spine.


    On a Whim, I reset the rest to the previous setting. I then screwed in some 75gr. field points. I put together 2 other arrows with some75gr. Muzzys I had laying around. The POI was identical.

    I suspect you will see something similar with your set up.. Since your arrow's spine is already weaker with 250s, going to a heavier 125 gr. tip may give you even more issues.
     
    Last edited: Aug 30, 2011
  9. Backcountry

    Backcountry Grizzled Veteran

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    Are you right or left handed? A left tear is a stiff spine, dropping the point weight increases spine. 250's should be perfect for your setup, has the bow been paper tuned?
     
  10. Windwalker7

    Windwalker7 Weekend Warrior

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    I am RH.

    I didn't have a left tear, just had BH hitting 5" right of FP. BH hitting right indicate too weak of spine.
     
    Last edited: Aug 30, 2011
  11. Windwalker7

    Windwalker7 Weekend Warrior

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    Whoa , whoa , whoa. Sorry about that. BH were hitting 5" Right.
     
  12. Windwalker7

    Windwalker7 Weekend Warrior

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    I better go back and fix that!
     
  13. Windwalker7

    Windwalker7 Weekend Warrior

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    You are correct, I had my left/right backwards. I fixed it in my previous posts.

    Thanks for pointing that out before I confused someone else.
     
  14. Backcountry

    Backcountry Grizzled Veteran

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    Ok, gotcha now. Thanks
     

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