Results 1 to 6 of 6

Thread: Ibo Speeds And Actual Speeds

  1. #1
    GRIP-N-RIP
    Guest

    Question Ibo Speeds And Actual Speeds

    What Are The Parameters For Ibo Fps? Ibo Fps For My Cheetah Is 310. Actual Chrono Fps Is 266-270 Fps With A 398 Grain Arrow. I'm Just Wondering For Ibo Fps, What Grain Per Inch Arrows Are They Using? Thanks!

  2. #2
    dbd870
    Guest

    Default

    It's 70# draw weight, 30" draw 350gr arrow and every trick they can come up with. 270fps with a 398 gr arrow give you a KE of 64.4; sounds like a nice setup. Don't forget things like string silencers, nock sets etc. all rob a litte speed as well.
    Last edited by dbd870; 06-24-2007 at 08:30 AM.

  3. #3
    GRIP-N-RIP
    Guest

    Default

    Thanks For The Info. I Just Have A Hard Time With The Fact Of Losing 40 Fps, With Silencers, A Peep And A D-loop.

  4. #4
    Senior Member
    Join Date
    Dec 2006
    Location
    Columbia, SC
    Posts
    188
    Post Thanks / Like

    Default

    If you go to the site below they have a calculator and explain what takes away from your IBO speed.

    http://www.thearcheryhut.com/index.htm

  5. #5
    GRIP-N-RIP
    Guest

    Default

    Thanks For The Help! Calculators Just Take The Fun Right Out Of It Dont They?

  6. #6
    dbd870
    Guest

    Default

    Very accurate. One almost need not bother with a chronograph!

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •