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Kinetic energy vs speed

Discussion in 'Bowhunting Talk' started by OKhunter, Jan 24, 2012.

  1. LittleChief

    LittleChief Administrator

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    It's alright, Bruce. My post above was just a joke. :tu:

    I'd have to go to HNI and copy that wet feather test. Then again, I could re-do it since I shoot with a bit more accuracy than I did back in '08. :)
     
  2. Vito

    Vito Grizzled Veteran

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    Nope, but it helps when shots don't go as planned.
     
  3. brucelanthier

    brucelanthier Grizzled Veteran

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    A more forgiving setup may have but a heavier arrow is only one component of that.
     
  4. Sticknstringarchery

    Sticknstringarchery Grizzled Veteran

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    Guessing that last part was aimed at me. I understand the forgiveness part and heck maybe even need some. I guess I do get a little overzealous at times. I do think I still want speed. I need to listen a little more on things like this but, I will never admit that to Vito. :lol:

    Bruce, thank you for taking the time and being patient. It takes old guys like you to help us younger ones out. I like how you didn't go calling names and saying extremely smart remarks. In the end people that do that end up losincredibilityty and respect from the younger ones. If I did offend you, I didn't mean too.
     
  5. Sticknstringarchery

    Sticknstringarchery Grizzled Veteran

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    What good did bringing that up do when in fact a heavier arrow would not have helped?? Belittling people does nothing for you sir!
     
  6. Vito

    Vito Grizzled Veteran

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    Thats because Bruce is part of the old guy square team. He doesn't even like balls on his forehead. :confused:

    I am always attempting to be helpful, I just have a poor way of showing it.
     
  7. Vito

    Vito Grizzled Veteran

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    You got poor penetration on that shot. Less than 10" if I remember correctly. We can't always predict how every shot will go. We can take steps to increase our odds of recover from a not-so-great shot.

    Actually, it does a lot for me. Its what keeps me interested around this place. I crack myself up.
     
  8. Tim Ainsworth

    Tim Ainsworth BHOD Crew

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    can't hate a guy for being curious little bugger, just takes patience, way to help em out bruce! I agree with you completely bruce speed sells (it sounds sexyand looks sexy on ads). but does nothing but light the deers hair on fire as it buzzes over their back on a poor shot. Alot can go wrong in the moments that count. Ill go with the ol trusty forgiveness over speed anyday. That said Sticks, there is defintly a mesh point. Don't think I'll ever be slinging lead shafts at deer.... unless they are rocket propelled with exploding tips!!:evilgrin:
     
  9. Sticknstringarchery

    Sticknstringarchery Grizzled Veteran

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  10. Vito

    Vito Grizzled Veteran

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    Again, sit back, observe and try to learn a little. You should have learned a lot in that thread about your lost deer.
     
  11. Sticknstringarchery

    Sticknstringarchery Grizzled Veteran

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    Once again, I also recall everyone else agreeing I spent plenty of time trying to track a scared off deer. I believe it was around 12 hours toatal. Had nothing to do with sitting back an listening.

    I did learn a lot. None of which was from you.
     
  12. Backcountry

    Backcountry Grizzled Veteran

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    Stick, I would feel more sympathy for you had you not argued your "lighter arrow" theories for so long in the beginning of the thread. Truth is, your were getting advice from some of the more prominent figures on this site, in terms of arrow and bow dynamics.

    Too flat out argue proven numbers and real world experience is naivety at it's finest, IMHO. Beating a dead horse?

    You know a lot for your level in Archery, I will give you that. You have picked it up quick. Sometimes, however, it is best to sit back and learn. Like Vito said, real life experiences trump supposed experiences. Everytime.

    Bottom line: Shoot with what your comfortable with. Your current setup will kill deer, but could be much better.
     
  13. Vito

    Vito Grizzled Veteran

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    Sigh...I can see you're just not going to get it.
     
  14. flystraightandtrue

    flystraightandtrue Weekend Warrior

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  15. Backcountry

    Backcountry Grizzled Veteran

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  16. GregH

    GregH Legendary Woodsman

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    Bruce speaks the truth. It's gospel. :)

    I've done all my own bow tuning and arrow building for years. I have a bow press, chrono, fletching jigs, scale etc. I shot for a bow company for 7 years as well. Back in the 90's I hot rodded one of my 3d bows. Back then, with a dual cam bow, I shortened my strings and cables until I shortened my axel to axel length by 1/2". I called it preload (of the limbs). That along with using the right number of eliminater buttons for string silencers, I gained an additional 12 fps over stock. At 60 lbs I was shooting a 300 gr ACC @ 321 fps. Not fast compared to today's standards but it was 1996.

    I took that bow and turned it into a hunting bow. I turned it up to 66 lbs and shot xx78 2413's out of it that weighed 425 gr @ 275 fps. This gave me 71+ ft/lbs KE. Plenty to shoot through deer. And it's comfortable.

    The most devastating bow that I ever shot was an 82 lb bow that shot 525 gr 2315's at @275 fps for 88 ft/lbs KE. I literally shot through a doe length wise with it! No need for me to use that much poundage anymore.

    The reason for the 275 fps is because that's the speed that my 85 gr fixed blade broadheads like to shoot at.

    For effeciency, you make a draw force curve of your bow: using a boat winch draw your bow back 1" at a time and record the draw weight. Do this for every inch until you reach the back wall of your draw length. Take the recorded draw weights and plot them out on a weight (vertical axis) VS draw length (horizontal axis).

    This produces a curve. Measure the area under the curve. Convert to ft/lbs and this is your stored energy.

    Now compare your stored energy VS your KE. I believe that this is efficiency.

    KE = V x V x Grains (V = fps)
    ____________
    450240
     
  17. Matt9589

    Matt9589 Weekend Warrior

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  18. OKhunter

    OKhunter Weekend Warrior

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    That is exactly where I am at. I am very new to bow hunting and all i cared about was speed. It is very easy to get hung up on speed when your new to all of this because that is how most people sell there bows, the first thing said is IBO speed. I went to my local proshop today and shot a few different types of arrows and decided that the easton axis arrow had deeper penetration so that is what i am going with. It just so happens that it was the heaviest arrow
     
  19. Sticknstringarchery

    Sticknstringarchery Grizzled Veteran

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    I am pretty hard headed at times. Kind of keeps me driving on through life sometimes. I don't see things that are obvious on occasion because I am looking for more details that aren't always there so, tell me what I am not getting.
     
  20. Mnardo72

    Mnardo72 Weekend Warrior

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    Bruce, thanks for the facts.

    Ps. your avatar picture is disturbing.
     

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