Broadhead flight

Discussion in 'Tech Talk' started by bones435, Nov 11, 2014.

  1. bones435

    bones435 Weekend Warrior

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    Montecs 100 grain.
    We shot this morning before the hunt. Shooting 60 and 80 yards grouping great with field tips. Switched to broad heads. Broad heads hitting 12" right. Consistent. Switched arrows switched broad heads everything. Field tips dead on broadheads 12" right @ 60 yards. Crap! First time in 5 years this has happened. Must be the rest? Paper tuning coming soon I guess. Sucks I have 3 weeks left of season and I'm doing this sighting crap again. I adjusted the rest slightly left and shot field tip. Field tip tailed bad and went way left. I put it back. I'm baffled. Must be my rest I just don't see it.
     
  2. mickeyt360

    mickeyt360 Weekend Warrior

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    certain broadheads you will need to sight your bow for broadheads.
     
  3. bones435

    bones435 Weekend Warrior

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    Nope. Should fly true
     
  4. Stubert

    Stubert Weekend Warrior

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    I could not get Montecs to shoot in my bow either. Slick tricks, Hellrazers, Grim reapers, Carbon express xt4, and Helix, all shoot to point of aim. Some combinations just don't work.
     
  5. bones435

    bones435 Weekend Warrior

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    My only problem with this thought process is that for the last 5 years Montecs have flown great same as field tips.
     
  6. frantic29

    frantic29 Die Hard Bowhunter

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    How you changed poundage or DL recently?Have you spun test your arrows? What do they do at closer yardage?
     
  7. bones435

    bones435 Weekend Warrior

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    I did tighten up the limbs a hair.
     
  8. frantic29

    frantic29 Die Hard Bowhunter

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    I wouldn't think a turn or so would make a huge a difference but it could have been the straw that broke the camels back so to speak. Maybe turn it back down and revisit your spine selection.
     
  9. Renegadefowler

    Renegadefowler Newb

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    check your spine and just for poops and giggles move your rest right. I had a simliar issue and when I moved it right the opposite of what traditional tuning dictates it workd. Maybe your torquing your bow harder. check for clearence issues as well
     
  10. tfox

    tfox Grizzled Veteran

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    There may be a slight cam lean as well as a centershot issue.
     
  11. bones435

    bones435 Weekend Warrior

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    I will try the rest to the right. Maybe. I've been trying rest to the left and it doesn't help. Really gotta paper tune this thing. No lean on the idler. Timing did slip out a tiny bit as indicated by the timing window. Arrows are gold tip expedition hunter 7595 spine of 340 I believe.
     
  12. indynotch50

    indynotch50 Grizzled Veteran

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    What is your:

    Draw weight:
    Draw length:
    Arrow Spine:
    Arrow length:
    Tip Weight:

    Phil should be chimming in any time with the easton archery tuning guide... if not, google the easton archery tuning guide...
     
  13. roadrunner

    roadrunner Weekend Warrior

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    That's weird about good flight and then bad flight. When I use Montecs I just put them on and shoot with very good flight, doesn't matter about blade orientation. Wac'ems do the same thing - good flight, no problems.
     
  14. Govtrapper

    Govtrapper Weekend Warrior

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    How old is you string sn cabled
     
  15. bones435

    bones435 Weekend Warrior

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    Z7
    Draw length 29.5
    Weight darn near 70
    Arrow 30"
    Spine 340 I believe gold tip expedition hunter 7595
    100 grain tip
     
  16. bones435

    bones435 Weekend Warrior

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    New last year so less than a year. I changed it a couple months after hunting season in the off.
     
  17. tfox

    tfox Grizzled Veteran

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    30" 340 spine is under spined for 70# @ 29 1/2" draw.

    Not saying that if you get everything PERFECT, that it won't tune, just that your on the edge of out of control.
     
  18. tfox

    tfox Grizzled Veteran

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    Obviously your strings creeper as evidence by the timing. This can cause contact issues with a rest as well because it throws the timing off on a fallaway.
     
  19. bones435

    bones435 Weekend Warrior

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    From what I can tell the expedition hunter 7595 are about the stiffest gold tips available. I would be willing to try different arrows suggestions? I have always shot these and never had a problem. I'm not exactly sure how this spine deal works to be honest but it seems the lower the number the stiffer the arrow. Correct? Timing isn't off that much. I will post a pic of the timing window on my cam
     
  20. bones435

    bones435 Weekend Warrior

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    ImageUploadedByTapatalk1417628681.435439.jpg
    Doesn't look too bad. It has been way worse in the past.
     

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