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Has anyone taken the 650 challenge?

Discussion in 'Bowhunting Talk' started by Matr138920, Jun 9, 2014.

  1. Matr138920

    Matr138920 Weekend Warrior

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    Would that of had arrow had a pass through on a moose or grizzly, probably not even close. A black bear doesn't have nearly the thick skin that a moose or a grizzly has.
     
  2. maxpetros

    maxpetros Grizzled Veteran

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    I also think that shooting a 450-500 with good FOC out of a 65-70 pound modern compound would do just fine on moose or grizzly with a nice cut on contact broadhead. Granted a 650 would be very nice but not necessary. I could see 650 for things like polar bears, ox, bison, or Cape buffalo.


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  3. cmonsta

    cmonsta Grizzled Veteran

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    We all know with good placement you dont need much. Dont think anyone would argue that. But we have all had bad shots also. Some our fault, sometimes its our nerves fault, could even be the animal moved. I bought my current bow for them bad shots. Shoots just as good as any slower bow, but *** some beast in it for when i make a mistake. I get so excited when an animal steps out that I have and will again make mistakes. Hate it, but its true. And most of us can say the same, weather they admit it or not.
     
  4. tfox

    tfox Grizzled Veteran

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    It doesn't take 50# ke in most cases and ke plays a very little role in the grand scheme of things.

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  5. maxpetros

    maxpetros Grizzled Veteran

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    So what it the practical application of KE numbers?


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  6. Backcountry

    Backcountry Grizzled Veteran

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    Sales baby!!
     
  7. tfox

    tfox Grizzled Veteran

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    Sorry butI really don't feel like delving into that conversation again.

    My main point of my comment was geared toward there being many factors that play into penetration. Such as tune, broadhead etc.

    Not a momentum verses ke debate.

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    Last edited: Jun 11, 2014
  8. Matr138920

    Matr138920 Weekend Warrior

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    The whole porpose of having a 650 grain and above arrow is to have superior penetration. Do you need an arrow that ways that much no, but what happens if you hit bone? You get less than desirable results. On alaskabowhunting.com there are several articles that explain why someone should use 650 gr arrows and there are actual test results. Like splitting bone on a water buffalo with a 27" draw 42# recurve with 650 gr arrow. Visit the website and have a look.
     
  9. Afflicted

    Afflicted Grizzled Veteran

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    The boars over 120lbs have a thick finger nail type shield that covers their vitals on each side. So hard to penetrate you don't even try. Best to try extreme quartering away and tuck an arrow behind the ribs or even a side angle neck shot. Very tough animals.
    I'll hunt hogs year round and deer elk and turkey's are just bonuses when in season.
     
  10. Afflicted

    Afflicted Grizzled Veteran

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    Also diameter of arrows now.
     
  11. ARCHER_CHI_RHO

    ARCHER_CHI_RHO Die Hard Bowhunter

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    i just ordered and will take the challenge
     
  12. Zedd

    Zedd Weekend Warrior

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    I have an extensive background in physics (nuclear physics to be precise). It is true the KE and Momentum (p) will follow a parabolic curve as the mass of the arrow increase and the speed decreases. However, the KE will reach a point much quicker than the momentum curve where the KE is at its maxima as compared to when the p is at its maxima. For an IBO at 330 ft/sec the ke maxima is somewhere around 480-500 gr arrow (lotsa variables); however for the momentum the maxima is somewhere around 640 (as maxpetros' data shows).
     
  13. tfox

    tfox Grizzled Veteran

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    Just remember his data is incorrect due to not factoring the efficiency of the bow with a heavier arrow.

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  14. ARCHER_CHI_RHO

    ARCHER_CHI_RHO Die Hard Bowhunter

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    i'm gonna try them with my slick tricks. i really don't feel like switching up broad heads right now.
     
  15. ARCHER_CHI_RHO

    ARCHER_CHI_RHO Die Hard Bowhunter

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  16. ARCHER_CHI_RHO

    ARCHER_CHI_RHO Die Hard Bowhunter

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    so far i'm really impressed.

    the fit/finish of the arrow is quite nice.

    the picture doesn't show it very well but it is currently at 645 grains. the foc with very rough calculations is a bit over 20%.

    i'll shoot them later on tonight, and if my technology-challenged self can figure it out, i'll try and post a video.
     
  17. cmonsta

    cmonsta Grizzled Veteran

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    Awesome! Cant wait to see what you think. Also post your bow specs and everything, would love to see what got going on!
     
  18. ARCHER_CHI_RHO

    ARCHER_CHI_RHO Die Hard Bowhunter

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    (DISCLAIMER: This is a test conducted by a very unsophisticated individual. This is purely a recollection of personal observation without the use of precision instruments, unless you count my uber-keen senses lol)
    67# 2014 Hoyt Carbon Spyder Turbo
    27" draw

    previous arrow weight was 450gns
    test arrow weight weight was 645gns

    Test 1: Feel/Sound
    It's simple physics for this one. The arrow is able to absorb more of the energy from the bow. A dead in the hand/silent bow just got "deader" and more silent. There was beyond a shadow of a doubt, noticeable difference. Did my arrow fly slower? Yes, of course. Do I or have I ever cared? No. hehe

    Test 2: Tuning/Distance
    Because of unexpected honey-do's (insert whip crack sound effect here), I was not able to accomplish this test tonight. More to come. Keep in mind that this arrow is tapered (thicker towards the front with a smooth, gradual tapering toward the rear of the arrow), which by all accounts should affect the attitude/pitch/yaw etc of the arrow during flight and theoretically should allow for accurate flight using 20%-25% FOC. I'll let ya'll know what tale of the tape says tomorrow.
     
  19. ARCHER_CHI_RHO

    ARCHER_CHI_RHO Die Hard Bowhunter

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    oh, and depending on tomorrow's test, i might actually shell out for these pretty expensive arrows (hope i never lose them)
     
  20. cmonsta

    cmonsta Grizzled Veteran

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    Awesome to hear that they make a big difference in noise! What is the price tag on 12 of them?
     

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