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Thread: Archery Calculators

  1. #11
    Senior Member Speedykills's Avatar
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    Quote Originally Posted by dugout View Post
    On my current setup I chrono 250 and this calculator gives me 253. I use my OT2 "adjusted" IBO number.

    I find with any of these calculators, with a particular bow, if I weight and check the actual specs I can adjust the IBO so the speed agrees with my chrono. Once done I use this adjusted IBO if I change DW, DL, Arrow weight, the calculator is pretty close to the actual chrono data.

    I use both OT2 and AA with great satisfaction. If folks blindly input manufacturers IBO it's a crap shoot if the calculators work or not. As they say, garbage in, garbage out... There is a good chance the error is the IBO nuber, not the calculator.

    I could care less about speed but I use this same method with DW, and arrow weight, looking at other calculations on unfamiliar set ups.


    Just curious which bow you gettin 250fps out of!!

  2. #12
    Member dugout's Avatar
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    Quote Originally Posted by Speedykills View Post
    Just curious which bow you gettin 250fps out of!!
    Both the 2010 Bengal spec IBO 315, and the 1997 Jaguar, IBO 305 can deliver 250fps with reasonable arrows.
    I consider these conservative set ups.

    Is that particularly curious?
    KE sells Bows, Momentum kills Game
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  3. #13
    Super Moderator Arrow Splitter's Avatar
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    Quote Originally Posted by dugout View Post
    Both the 2010 Bengal spec IBO 315, and the 1997 Jaguar, IBO 305 can deliver 250fps with reasonable arrows.
    I consider these conservative set ups.

    Is that particularly curious?
    Sounds about right to me.

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  4. #14
    Senior Member Speedykills's Avatar
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    Quote Originally Posted by dugout View Post
    Both the 2010 Bengal spec IBO 315, and the 1997 Jaguar, IBO 305 can deliver 250fps with reasonable arrows.
    I consider these conservative set ups.

    Is that particularly curious?
    I was thinkin that if it was bengal that was slow,either you have a short Dl,heavy arrows or low DW,i was just curious though................

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