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Thread: Foc?

  1. #11
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    Thanks for the help guys. Used numerous calcs and they all come in at 10.3%. Hunters friend gave me the highest weight of my combo at 395gr. I even punched in the Easton 2315 and only change was the total arrow eight using 11.9 gr per. Guess it is what it is, lol.
    2010 Bengal,63#, 28dl, Easton ST Excels 400s @ 27.5", GT 5575s @ 27.5", or Beman 400s @ 27.5, ST 100 Magnums/Grim Reapers, older WB, Bonecollector 1100 Sights, LimbSaver "S" coil stabilizer, Grayling four arrow quiver, nocturnal nocks, Hutch-n-Sons cable/strings

  2. #12
    Senior Member elkslayer4x5's Avatar
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    Uuh, 10.3? Can you get a little heavier insert for those GoldTip 5575's? Gold Tip makes a point weight system for about $8.00 a doz. Comes in 3 sizes; 10 gr, 20gr and 50grs, screws onto the back of your insert. That'll bring up your foc. So will switching from vanes to feathers.

    http://www.lancasterarchery.com/gold...ew-system.html
    Last edited by elkslayer4x5; 11-17-2011 at 06:20 AM.
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    Martin 06 Slayer, Nitrous C, shoot thru, 63lb, Quiktune 3000, HAA OL 5519, Beman ICS Hunter
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    Ben Pearson 1968 'Cougar' 62" 45#s @ 28" recurve, parallel shaft POC, Zwickey 'Eskimo' 2 blade

  3. #13
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    Quote Originally Posted by parttimr View Post
    Thanks for the help guys. Used numerous calcs and they all come in at 10.3%. Hunters friend gave me the highest weight of my combo at 395gr. I even punched in the Easton 2315 and only change was the total arrow eight using 11.9 gr per. Guess it is what it is, lol.
    Measure it yourself. .
    Check out the last page of the Easton Arrow Tuning & Maintence Guide.....easy and and you'll know exactly what your specific arrow FOC really is. http://www.eastonarchery.com/pdf/tuning_guide.pdf
    (the rest of the guide is pretty usefull as well)
    2009 Martin Bengal M2 Pro Cam w/factory STS & CCS.....66lbs, 29" DL, 422gr @ 272fps, Winners Choice string/cable, Trophy Taker drop-away Rest, Scott Release
    1996 Martin Firecat XRG Pro Series w/Ultra Sonic wheels.....69lbs, 29" DL, 465gr @ 245fps, w/fingers & Martin leather glove

  4. #14
    String builder/ Super Moderator Hutch~n~Son Archery's Avatar
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    I agree that you should manually check the foc it might not be as calculated






    Hutch
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  5. #15
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    my foc is 11.7 is that good or bad
    2010 Rytera Nemesis. 63lbs/29dl 292 fps 384gr arrow. Sword 6 pin sight

  6. #16
    String builder/ Super Moderator Hutch~n~Son Archery's Avatar
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    FOC is important IMO 12% or above is what is recommended. When testing in my super shooter my pro arrows were too stiff and FOC was 10.50% the arrow were unpredictable. My new non pro arrows were less stiff and had more than enough FOC they hit in the same hole each time shot at 65yards.
    This link explains it well http://archeryreport.com/2010/09/arr...ics-calculate/



    Hutch
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  7. #17
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    @ RLW and Hutch, I am planning on doing it manually as you suggested this weekend I hope. Will post the results after finished. Again thanks.
    2010 Bengal,63#, 28dl, Easton ST Excels 400s @ 27.5", GT 5575s @ 27.5", or Beman 400s @ 27.5, ST 100 Magnums/Grim Reapers, older WB, Bonecollector 1100 Sights, LimbSaver "S" coil stabilizer, Grayling four arrow quiver, nocturnal nocks, Hutch-n-Sons cable/strings

  8. #18
    String builder/ Super Moderator Hutch~n~Son Archery's Avatar
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    Good let us know!






    Hutch
    Bow String Depot Custom String Builders
    Need a string set pm or email me @ bowstringdepot@gmail.com
    or check us out @ http://bowstringdepot.com

  9. #19
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    why do they suggest a foc that is lower for 3d and target? Just curious.
    2010 rytera x. apache rest, truglo 5pin. 8in shockbocker 1000 stabilizer. norway g2 string tamer Huch-n-Son strings
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  10. #20
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    Hutch PM sent with measurements to verify for me. Thanks

    Well I have measured and re-measured and it still comes out to anywhere from 10.1 t0 10.3 with 100gr bh installed. according to the GT charts the 5575 is geared for 85 to 100 gr heads and the 7595 are for the 125's so don't know if I can go t heavier heads with this arrow to change the FOC.
    Last edited by parttimr; 11-18-2011 at 03:43 PM.
    2010 Bengal,63#, 28dl, Easton ST Excels 400s @ 27.5", GT 5575s @ 27.5", or Beman 400s @ 27.5, ST 100 Magnums/Grim Reapers, older WB, Bonecollector 1100 Sights, LimbSaver "S" coil stabilizer, Grayling four arrow quiver, nocturnal nocks, Hutch-n-Sons cable/strings

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