Results 1 to 14 of 14
  1. #1
    NickB's Avatar
    NickB is offline Senior Member Weekend Warrior
    Join Date
    Oct 2011
    Location
    Michigan
    Posts
    104
    Post Thanks / Like

    Mathews Heli-m and QAD ultra rest?

    So I bought a Heli-m and I have a QAD ultra rest on it. The bow is #70 and 29.5 inch draw. My rest is all the way over to the left as far as it goes. I'm getting a pretty good paper tune hole now, as of a week ago I couldn't get a good tear and we narrowed it down to my arrow being under spined, I moved from a 340 to a 400. but I was curious if anyone else had that issue when tuning a Heli-m with a QAD.

  2. #2
    indynotch50's Avatar
    indynotch50 is offline Senior Member Die Hard Bowhunter
    Join Date
    Jan 2011
    Location
    Morristown, IN
    Posts
    2,833
    Post Thanks / Like
    If you're shooting a 70# bow, you should be at a .340. A .400 is way under spined. If your rest is all the way to the left your center shot has to be way off. Don't let the paper tune fool you. It's possible to manipulate the paper to be correct but your rest we well off.
    Get the .340 back out and play with it. You should be able to get your center shot and go from there.
    Any more questions just ask.
    Mathews Z7 Xtreme
    AXT Driver 4 Pin
    AXT Carbon Triad Stabilizer
    AXT Carbon Helix Quiver
    Ripcord SOS Rest
    FirstString Red/Black/Halo
    Bloodsport String Stop
    Carbon Express Maxima Red 350

  3. #3
    NickB's Avatar
    NickB is offline Senior Member Weekend Warrior
    Join Date
    Oct 2011
    Location
    Michigan
    Posts
    104
    Post Thanks / Like
    So is a 400 stiffer than a 340?

  4. #4
    Jim
    Jim is offline Junior Member Newb
    Join Date
    Dec 2011
    Posts
    3
    Post Thanks / Like
    Nope...other way around.
    The higher the number the weaker the spine.

  5. #5
    trial153's Avatar
    trial153 is offline Senior Member Die Hard Bowhunter
    Join Date
    Dec 2011
    Location
    NY
    Posts
    2,700
    Post Thanks / Like
    Make your corrections in steps otherwise you won't get a handle on the real issue.

    First correct the spine issue and move up to a .340

    Then re adjust your center shot back to about dead center... Then preceded to tune...
    If that didn't get you a MUCH improved tear I would then...
    Look to a draw length adjustment as a common denominator to horizontal tear is incorrect draw length....
    Happiness is a blood trail.

  6. #6
    NickB's Avatar
    NickB is offline Senior Member Weekend Warrior
    Join Date
    Oct 2011
    Location
    Michigan
    Posts
    104
    Post Thanks / Like
    I took my bow into my local pro shop, I had a 340 arrow and told them I was getting bad arrow flight and wanted to go to a 300(only because I had some people suggest that for 70# 29.5 draw with a 29 inch arrow) So I go in there say something about a 300 and pro shop guy tells me that 300 is way to stiff and I will lose a lot of yardage and my arrow will arching a lot more, so he talked me into a 400 which I asked multiple times if it was a stiffer spine and he said it was. I got them home and paper tuned my bow and was getting a perfect bullet hole but my rest was all the way to the left. My draw length is perfect. Not sure why he would suggest 400 spine. Any tricks or tips on getting center shot?

  7. #7
    robchevy2 is offline Junior Member Newb
    Join Date
    Feb 2013
    Location
    Berkley Mass
    Posts
    8
    Post Thanks / Like
    A 400 is a weaker spine than a 340. Do a walk back tune and you will see which way to move your rest. just google how to and it will explain everything. I only draw 58#and I use a 400 spine arrow

  8. #8
    Bootlegger's Avatar
    Bootlegger is offline Senior Member Die Hard Bowhunter
    Join Date
    Jan 2013
    Location
    Crossville,TN
    Posts
    1,711
    Post Thanks / Like
    The guy at the shop was wrong....the 400 is weaker.
    PSE X-Force Revenge
    AXT Headhunter Micro Xtreme Sight
    Truglo Carbon XS Quiver
    QAD Ultra Rest HDX
    Bee Stinger Sport Hunter Extreme Stabilizer
    Carbon Express Mayhem Hunter 350
    Nockturnals
    Bow String Depot Strings
    Swhacker Broadheads


    Bow String Depot Field Staff

    Bowstring Depot.com

  9. #9
    Jim
    Jim is offline Junior Member Newb
    Join Date
    Dec 2011
    Posts
    3
    Post Thanks / Like
    340's are even weak for your setup.
    Attached Thumbnails Attached Thumbnails Mathews Heli-m and QAD ultra rest?-heli-m.jpg  

  10. #10
    NickB's Avatar
    NickB is offline Senior Member Weekend Warrior
    Join Date
    Oct 2011
    Location
    Michigan
    Posts
    104
    Post Thanks / Like
    Sorry I can't read what it says on that picture. Does it suggest 300?

  11. #11
    indynotch50's Avatar
    indynotch50 is offline Senior Member Die Hard Bowhunter
    Join Date
    Jan 2011
    Location
    Morristown, IN
    Posts
    2,833
    Post Thanks / Like
    The spine measures deflection over a length. So less deflection means the spine is stiffer.
    ***With a 100 grain tip***
    The .400 really runs out about the 65# mark. The .340 spine runs out around the 70# mark. I shot CE .340s perfectly through my z7x.
    If you move to a 125 grain tip, you'll have to move to a stiffer shaft as the added weight in the front will cause your arrow to want to bend more out of the bow if you will.

    The guy at the "pro" shop was completely wrong and sold you the arrows. Which actually, is quite dangerous.

    Go with the .340 and a 100 grain tip, or a .300 and a 125 grain tip. Both will give you perfect bullets when your arrow is at center shot.
    Mathews Z7 Xtreme
    AXT Driver 4 Pin
    AXT Carbon Triad Stabilizer
    AXT Carbon Helix Quiver
    Ripcord SOS Rest
    FirstString Red/Black/Halo
    Bloodsport String Stop
    Carbon Express Maxima Red 350

  12. #12
    NickB's Avatar
    NickB is offline Senior Member Weekend Warrior
    Join Date
    Oct 2011
    Location
    Michigan
    Posts
    104
    Post Thanks / Like
    So I took the arrows back and the employees there were dumb founded that this guy sold me .400 arrows. I ended up exchanging them for FMJ .300. So hopefully now I can get this Figured out.

  13. #13
    bowhuntjoe's Avatar
    bowhuntjoe is offline Senior Member Weekend Warrior
    Join Date
    Apr 2011
    Location
    Australia
    Posts
    217
    Post Thanks / Like
    Get 340 spine arrows, get the centre shot back to normal, check the arrow is knocked to a perfect right angle to the string using a bow square, start paper tuning. If it is not tuning with the centre shot almost spot on you may want to check for lean on the idler wheel.

    I had a Diamond Marquis ages ago and had a simular problem, it would not tune with the rest centred no matter how perfectly squared off everything was, I checked cam lean and it was WAYYYYY off, fixed the lean on the idler wheel and it tuned really nice after that with the arrow rest in the correct position.

    I hope this helps, mate.
    2010 Diamond Black Ice FLX.

  14. #14
    maxpetros's Avatar
    maxpetros is online now Senior Member Grizzled Veteran
    Join Date
    Dec 2012
    Posts
    3,213
    Post Thanks / Like
    Quote Originally Posted by bowhuntjoe View Post
    Get 340 spine arrows, get the centre shot back to normal, check the arrow is knocked to a perfect right angle to the string using a bow square, start paper tuning. If it is not tuning with the centre shot almost spot on you may want to check for lean on the idler wheel.

    I had a Diamond Marquis ages ago and had a simular problem, it would not tune with the rest centred no matter how perfectly squared off everything was, I checked cam lean and it was WAYYYYY off, fixed the lean on the idler wheel and it tuned really nice after that with the arrow rest in the correct position.

    I hope this helps, mate.
    How do you correct cam lean?

    2013 DEER CONTEST TEAM 20
    2013 G5 QUEST TORRENT
    62 LBS 27.5 INCH DL
    CBE TEK HYBRID 5 PIN
    QAD ULTRA REST HDX ARROW REST
    STOKERIZED SS1 STABILIZER AND 10 INCH HUNTER
    G5 HEADLOC QUIVER
    EASTON AXIS 400 SPINE ARROWS 425 GRAINS
    NAP KILLZONE 125 GRAIN BROADHEAD
    STANISLAWSKI SX-2 THUMB RELEASE/ CARTER COLBY 2 BACK TENSION

    TACKLEBOX RULZ

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •