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Thread: Kinetic Energy

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  1. #1
    Super Moderator Arrow Splitter's Avatar
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    Default Kinetic Energy

    So I ran my specs through the Backcountry archery calculator, and it said my approx. kinetic energy is 66 ft. lbs, enough (according to the general consensus) for dangerous/tough game such as Cape Buffalo and Grizzly.

    A.S
    2011 Martin Firecat 400/NAP Apache Dropaway/Truglo Xtreme Sight/Custom 8" Stabilizer/Victory V6 Arrows
    2007 Martin Jaguar /Trophy Taker Dropaway/Extreme Sight/Custom 21" Stabilizer/Victory V6 Arrows
    Bow String Depot, Custom String Builders email us @ bowstringdepot@gmail.com

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    Senior Member Ehunter's Avatar
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    That should be more than enough for deer AS. lol Had an old g/f that got a complete pass through with a bow that was only getting about 40 ft/lbs. When I had that bow cranked up to 70#, it said it was around 78 ft/lbs KE. with my set up. Now I shoot most everything around 65#. Easier draw, and still plenty of energy left over to stick the arrow in the ground. lol
    Another decent calculator is here: http://utopiaprogramming.com/ke/KineticEnergy.html#
    Last edited by Ehunter; 09-18-2012 at 08:18 PM.
    2006 Rytera Bullet X 60#---2008 Moab 70#
    2008/12 Firecat 60#--- 2010 Warthog 70#
    2009 Warthog 70#---2009-10-12? Warthog Frankenbow with Nitrous B
    2010 Strother SR-71 65# & 2012 Strother Rush 65#
    2012 Strother SX Rush 60# & 2011 Strother Infinity 70#
    BSD strings and cables

    Yeah, I know I'm grumpy and opinionated.

  3. #3
    Super Moderator Arrow Splitter's Avatar
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    Yeah, it's set for 60lbs right now, but after deer season I'll probably set it for about 65 lbs. It's just too smooth and easy to draw. Oops, there's no such thing as a bow being too smooth.LOL

    A.S
    2011 Martin Firecat 400/NAP Apache Dropaway/Truglo Xtreme Sight/Custom 8" Stabilizer/Victory V6 Arrows
    2007 Martin Jaguar /Trophy Taker Dropaway/Extreme Sight/Custom 21" Stabilizer/Victory V6 Arrows
    Bow String Depot, Custom String Builders email us @ bowstringdepot@gmail.com

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    Super Moderator Arrow Splitter's Avatar
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    That calculator works well too.
    2011 Martin Firecat 400/NAP Apache Dropaway/Truglo Xtreme Sight/Custom 8" Stabilizer/Victory V6 Arrows
    2007 Martin Jaguar /Trophy Taker Dropaway/Extreme Sight/Custom 21" Stabilizer/Victory V6 Arrows
    Bow String Depot, Custom String Builders email us @ bowstringdepot@gmail.com

  5. #5
    Senior Member typically8's Avatar
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    Quote Originally Posted by Ehunter View Post
    That should be more than enough for deer AS. lol Had an old g/f that got a complete pass through with a bow that was only getting about 40 ft/lbs. When I had that bow cranked up to 70#, it said it was around 78 ft/lbs KE. with my set up. Now I shoot most everything around 65#. Easier draw, and still plenty of energy left over to stick the arrow in the ground. lol
    Another decent calculator is here: http://utopiaprogramming.com/ke/KineticEnergy.html#
    Ok Ehunter when it asks for the weight on string are they asking for my accesories?
    2013 PANTERA w/ cloaked cams, PINK Meta peep, PINK/BROWN BSD strings, PINK/BROWN BowJax, Truglo Range Rover Pendulum Site, Shockwave Stabilizer
    2012 Onza III w/cloaked cams, Meta peep, Truglo Micro Brite, Shockwave Stabilizer
    2010 G5 Quest Primal
    True-Fire Hardcore and Winn Free Flight releases
    Maxima's tipped w/ RAGE broadheads (some w/ PINK fletching)

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    Senior Member Ehunter's Avatar
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    Yes, you add up the weight of the peep, string silencers, D loop, anything you have on the string, with the exception of speed nocks. A simple peep like a Fletcher or Meta Peep and D loop will weigh about 20 grains. I think most people on average have about 28-30 grains on their strings for a hunting set up.
    2006 Rytera Bullet X 60#---2008 Moab 70#
    2008/12 Firecat 60#--- 2010 Warthog 70#
    2009 Warthog 70#---2009-10-12? Warthog Frankenbow with Nitrous B
    2010 Strother SR-71 65# & 2012 Strother Rush 65#
    2012 Strother SX Rush 60# & 2011 Strother Infinity 70#
    BSD strings and cables

    Yeah, I know I'm grumpy and opinionated.

  7. #7
    Senior Member ElkSlayer's Avatar
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    Quote Originally Posted by Arrow Splitter View Post
    So I ran my specs through the Backcountry archery calculator, and it said my approx. kinetic energy is 66 ft. lbs, enough (according to the general consensus) for dangerous/tough game such as Cape Buffalo and Grizzly.

    A.S
    welcome to the big boys club......lol hahahahha ready to go after water buff
    It's all fun an games till you put that big boy on the ground.. now its time to get to work
    Martin cougarIII elite nitrous C cam X system & HHA
    Darton Fury recurve

    http://www.cascadianbowmen.org/

  8. #8
    Super Moderator Arrow Splitter's Avatar
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    Quote Originally Posted by ElkSlayer View Post
    welcome to the big boys club......lol hahahahha ready to go after water buff
    The only way you'll see me going after a water buffalo is with .375 Magnum rifle or similiar.

    A.S
    2011 Martin Firecat 400/NAP Apache Dropaway/Truglo Xtreme Sight/Custom 8" Stabilizer/Victory V6 Arrows
    2007 Martin Jaguar /Trophy Taker Dropaway/Extreme Sight/Custom 21" Stabilizer/Victory V6 Arrows
    Bow String Depot, Custom String Builders email us @ bowstringdepot@gmail.com

  9. #9
    Senior Member ElkSlayer's Avatar
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    why you just posted you have enough KE...lol I see water bufflo hunting like this.. go out find said critter try not to get run over and shoot one...lol sure glad I cant aford to do this
    It's all fun an games till you put that big boy on the ground.. now its time to get to work
    Martin cougarIII elite nitrous C cam X system & HHA
    Darton Fury recurve

    http://www.cascadianbowmen.org/

  10. #10
    Super Moderator Arrow Splitter's Avatar
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    Oh yes, I have enough kinetic energy, but I'm not that daring.LOL Example: "I missed! Now the buffalo is charging!!! RUN!!!"

    A.S
    2011 Martin Firecat 400/NAP Apache Dropaway/Truglo Xtreme Sight/Custom 8" Stabilizer/Victory V6 Arrows
    2007 Martin Jaguar /Trophy Taker Dropaway/Extreme Sight/Custom 21" Stabilizer/Victory V6 Arrows
    Bow String Depot, Custom String Builders email us @ bowstringdepot@gmail.com

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