Broadheads change accuracy?

Discussion in 'Tech Talk' started by JCraig, Oct 26, 2010.

  1. JCraig

    JCraig Die Hard Bowhunter

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    im shooting a 100 gr. G5 montec through my new PSE bow madness XL at 60 lbs and at 20 yards it seems to be hitting about 3 inches to the right of where i am with my field tips. Any suggestions?
     
  2. striker

    striker Weekend Warrior

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    Is the bow tuned?
     
  3. JCraig

    JCraig Die Hard Bowhunter

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    yeah it is. i've never had the problem before.
     
  4. Florida Marine

    Florida Marine Weekend Warrior

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    under spined arrow - drop the draw weight...

    do you have the Easton Tuning guide?
     
  5. JCraig

    JCraig Die Hard Bowhunter

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    no i don't. it was tuned by a guy who owns a shop, hes tuned my bows previously and theyve been dead on. i guess i'll be doing some research.
     
  6. striker

    striker Weekend Warrior

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    You should tune it yourself, if your form is different from the pro that could give you problems. You can bare shaft tune which I believe is the Easton method mentioned above. DO NOT SHOOT BARE SHAFTS WITH BROADHEADS!! Use field points for tuning.Shoot 3 fletched arrows at 16 yards then shoot 1 or 2 bare shafts. Bare shafts should be within 1 inch of fletched arrows.
    Make vertical adjustments first then horizontal.
    Bare shafts that are high indicate a low nocking point move the nocking point up.
    Bare shafts hitting low move the nocking point down.
    If bare shafts impact left the arrow is to stiff. Increase draw weight or increase point weight or move the rest away from the riser.
    If bare shafts impact right arrows are too weak. Decrease bow weight or decrease point weight or move the rest closer to the riser.
     
  7. GABowhunter

    GABowhunter Moderator

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    IF the bow is tuned (center shot set, etc) then the arrows are underspinned (assuming you are right handed). What arrows are you shooting and what is their length and your draw length?

    [​IMG]

    Click here for full Easton Tuning Guide
     
  8. OHbowhntr

    OHbowhntr Die Hard Bowhunter

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    +1, the Bowmadness has a relatively aggresive cam system and a 60# bow at 28.5-30" really needs a ..340 spine, MANY guys would set that bow up with a .400 trying to get a little extra speed, and because MOST 60# bows are okay with a .400, but that bow is an exception to that, and because of it's aggressive cams, the .400's are likely too weak. Also, YOU should be the one shooting your bow to tune it, it'll develop a little confidence in you, as well as allow that bow to be tuned specifically to your grip and release. BH's are going to magnify any quirks you may have in form, that you may not see with FP's.
     
  9. Hoythews71

    Hoythews71 Weekend Warrior

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    Something may have been loose and shifted slightly after the tune. I'd start with the rest and nock point.

    The Easton tuning chart is great, and there is a book by Bill Winke called Setting up the Ultimate Hunting Bow, or something to that effect. Very thorough book.
     
  10. JCraig

    JCraig Die Hard Bowhunter

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    i shoot left handed. i'll try a few more shots and then proceed to tuning
     
  11. JCraig

    JCraig Die Hard Bowhunter

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    how much would i increase broadhead weight? i'm shooting 200s my draw length is 27 i believe
     

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