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Arrow question??????????

Discussion in 'Tech Talk' started by Hightower, Dec 5, 2011.

  1. Hightower

    Hightower Weekend Warrior

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    Got a buddy who shoots a Mathews SQ2. He is only pullin maybe 65 lbs on a 29 in draw length. He shoots Gold Tip hunter 5575 with blazer vanes and 100 grain fieldtip. Chronographed his bow today and It read 244 fps. I was told this was slow that if I went to a lighter arrow he'd shoot faster like 280s. What ya think???
     
  2. brucelanthier

    brucelanthier Grizzled Veteran

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    I think 244 is plenty fast and there is no need at all to try and get faster.
     
  3. Hightower

    Hightower Weekend Warrior

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    Yea thts what I said, but he thinks he needs it. I would think 270 would help. Maybe if he took off his wisker biscut and a QAD rest? He said funds are limited, and wants the QAD but the cheaper one they say has bounce to it??? cuse no internal brake like the higher end ones
     
  4. Slider46

    Slider46 Die Hard Bowhunter

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    Is the extra money, time, adjusting and testing worth the 7 extra ft/lbs?

    Really - take a look at these (approximate) calculations:

    244fps (assuming a 400gr arrow) = 52.9 ft/lbs KE
    270fps (assuming a lighter 370gr arrow) = 60.0 ft/lbs KE

    7 ft/lbs more for a lot more tweaking and more $$. Seems pointless to me when 45 ft/lbs is enough to kill a deer with a correct shot placement.
     
  5. Hightower

    Hightower Weekend Warrior

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    got ys. It is Gold tip Expedition hunter 5575 blazer vanes with 100 grain tip. how much grains it tht? and what about the 3555? O and while were at it how would he convert over to a diffrent brand if wanted? Just look for about the same grains per inch and 400 spline?
     
  6. Slider46

    Slider46 Die Hard Bowhunter

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    A quick Google search gave me about 9.2 grains per inch for the 5575. 2" Blazer vanes are about 5 grains each. Insert is probably 10-12 grains. All that together gives you an arrow just under 400 grains.

    To switch brands and keep the same arrow flight characteristics yes, just look for an arrow with similar grains per inch and spine. (Helpful tip, arrow spine, not spline is what determines the stiffness)

    Keep in mind that more spine (stiffer arrow) is better than less spine if you have to choose.
     
  7. Muzzy Man

    Muzzy Man Grizzled Veteran

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    Is he shooting accurately now? If so, he should keep shooting what he has. IMHO To paraphrase King Solomon: "Many a wallet has been emptied over empty vanity."
     
  8. Hightower

    Hightower Weekend Warrior

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    I got ya. someone made a good point to me. When you shoot a biscut if you kinda jump/flinch right at release, the arrow has to pass FULLY THROUGH the biscut causing it to pull off. With a drop away, its clear at the release. So this would incorporate in tighter groups if u flinch like me. Right???
     
  9. BowTechnicianforChrist

    BowTechnicianforChrist Weekend Warrior

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    The slower arrow has more kinetic energy (whoop ass). The lighter arrow has more speed. If you gained 40fps, you would have to go to a WAY lighter arrow. If the spine is correct, it should be ok, but the bow should be louder because of the lighter arrow, and there should be much less ke.

    Only pulling 65 pounds is not a problem. To many people pull to much weight on a race for speed. Put it this way 2000 animals dropped to about the same original setup you stated originally, at 53lbs, all by Ted Nugent.

    Any of todays bows, at 50lbs will kill any big game animal in America, with the right setup. I'd go with the heavyer setup, but if your happier with the speed and has a little problem judging yardage, the speed will help. To each is own.

    IMHO. God Bless.
     
  10. BowTechnicianforChrist

    BowTechnicianforChrist Weekend Warrior

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    Not necessarily. Very rarely does a wb differ from a fall away, assuming their both tuned correctly, the pulling more likely has to do with release. Release's are extremely different, in size, caliper single or double, length, etc. The release should be tuned like a bow. Have someone watch and notice what the release is doing and where the anchor point is. Try different releases or adjustments, some releases have a hard creep trigger, and this almost always causes pulling. Also, target panic could be an issue. Perfect practice makes Perfect.

    Unless- If the vanes are not set to make it through the rest without hitting the black thicker whiskers, could also cause problems tuning. Other than that a wb will lose 5fps, but there is no other advantage to a drop away, other than they are harder to tune (not much for me), and have more of a chance of failing (ie connection to cable).

    IMHO. God Bless.
     
  11. BowTechnicianforChrist

    BowTechnicianforChrist Weekend Warrior

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    In the weight, you have to factor in the grain weight of the adhesive used on the insert, vanes, and the weight of the nock (esp if it's lighted). If unlighted, your looking at another 10-12 grains. Not a large amount, just FYI.

    IMHO. God Bless.
     
  12. BowTechnicianforChrist

    BowTechnicianforChrist Weekend Warrior

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    I hate to admit that I have been shooting a bow for 20 years (Im 36), I remember the race to 200fps, and gold threaded pin sights with white tips. SCARY. 244 is fine as long as you keep deer inside the box, or can judge yardage well. In the box, as we call it, is 40 yards. I'd try to stay inside 30-35 unless you can judge distance or use a rangefinder.

    IMHO. God Bless.
     
  13. BowTechnicianforChrist

    BowTechnicianforChrist Weekend Warrior

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    Keep in mind 2 things:
    KE diminishes over yardage, and 45 ft/lbs is a minimum.

    If you can judge yardage, stay. If you need the help with the speed, switch up. Tuning, esp by a pro, can be done in 20 minutes.

    IMHO. God Bless.
     

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