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Thread: Arrow spine help

  1. #1
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    Default Arrow spine help

    So i've had my Saber takedown bow for a couple of weeks now and am so far loving it. Today i decided to have a go at tuning the bow to get the arrow flying perfectly so i stripped the plastic fletchings of one of my cheap 30" armex arrows and had a go at bare shafting. I bought these arrows before i knew you had to buy specific arrows for certin bows and poundages.

    Anyway, i think the spine is to heavy for my bow so i want to buy the correct arrows for my bow. Has anybody got any suggestions for what arrow to use? My Saber is 40# but i'm not sure what weight i'm pulling in at. Probably around 28". I've had a go at Eastons spine calculator but i was confused about the point weight?

    Any help would be great.

  2. #2
    String builder/ Moderator Hutch~n~Son Archery's Avatar
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    Hey TP, try this! I am sure some others will pipe in.

    http://www.3riversarchery.com/spinecalculator.asp




    Hutch
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  3. #3
    Administrator bfisher's Avatar
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    The bow's draw weight is calculated at a 28" draw so if you're actually drawing 28" then it's 40# or close to it. Add or subtract 2# for each inch difference that you are drawing from 28". 2# less for 27". 2# more for 29".

    If using a carbon arrow with a 100 gr point the Easton chart calls for a 500 spine.
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  4. #4
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    Quote Originally Posted by Hutch~n~Son Archery View Post
    Hey TP, try this! I am sure some others will pipe in.

    http://www.3riversarchery.com/spinecalculator.asp

    Hutch
    Thanks for that link Hutch, that there is an in depth calculator! Unfortunatly though, the Saber is not listed though.

  5. #5
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    Quote Originally Posted by bfisher View Post
    The bow's draw weight is calculated at a 28" draw so if you're actually drawing 28" then it's 40# or close to it. Add or subtract 2# for each inch difference that you are drawing from 28". 2# less for 27". 2# more for 29".

    If using a carbon arrow with a 100 gr point the Easton chart calls for a 500 spine.
    Thanks for the reply bfisher, i will have to try and get an accurate measure on my draw tommorrow.

    Yeah, but the gr of the point is where i am getting the most confusion. What does a higher or lower gr point indicate? And what gr would be a good start? I'm only shooting targets.

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