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Spine tuning---advice needed--my specs

Discussion in 'Bowhunting Talk' started by virginiashadow, May 13, 2010.

  1. virginiashadow

    virginiashadow Legendary Woodsman

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    Ok, I am currently shooting a X-200 #55 recurve with a 28 inch draw. My draw length however is 28.5 inches. My arrows are Beman 340's ICS Hunters with 175 grain tips. So I am trying to tune my 340's because I think I am overspined. I need to weaken it a bit. I made two charts. The first chart is my current set-up. It looks "OFF".

    I added a 50 grain weighted insert to the second chart and it looks just about right. This is my first time trying to tune my arrows and I am not sure if my thinking is correct. Tell me if what I am thinking looks right...ANY advice is worth its weight in gold to me. Thank you.

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    Last edited: May 13, 2010
  2. GMMAT

    GMMAT Grizzled Veteran

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    With this bow? Have you measured it?

    Doesn't really matter. You need some bare shafts and about 5 min. to determine if you can shoot those arrows. It'll save you a LOT of "figuring".
     
  3. Backcountry

    Backcountry Grizzled Veteran

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    You might try a heaver head first, for money's sake. It will be cheaper than buying new arrows obviously. I would think you would need a 400 though
     
  4. virginiashadow

    virginiashadow Legendary Woodsman

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    I have about 10-12 Beman 400's that are bare shafted right now. Jeff, give me the low down on how to see within 5 min! :)

    Backcountry--that is what I was figuring, but I think I can shoot the 340's as well if I gain 50 extra grains on a brass insert.
     
  5. GMMAT

    GMMAT Grizzled Veteran

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    Put the tip weight you WANT to shoot on the business end.

    Shoot your bow in the vertical plane (straight up and down).

    Stand back about 15yds.

    Shoot 3 bare arrows, aiming for the center of your target.

    Come back and tell me: 1) where your arrows impacted (left/right) 2) nock orientation of the arrows in the target (left/right) 3) nock orientation of the arrows in the target (high/low).

    Remember how I wanted you NOT short-drawing? Here's where that becomes REAL important. You're gonna need to be consistent.
     
  6. virginiashadow

    virginiashadow Legendary Woodsman

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    Jeff, thank you. I will print this out and do the test tomorrow. I really appreciate it.
     
  7. BJE80

    BJE80 Legendary Woodsman

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    Jeff,

    Did you ever know 1/2 as much about compound tuning or did you just start getting serious when you went traditional? :tu:
     
  8. virginiashadow

    virginiashadow Legendary Woodsman

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    Ok Jeff here goes. Take this bare shaft test knowing that my form is inconsistent at times.

    I shot both the 340's and the 400's. I shot them at least 10-15 times each.

    Beman 400's with a 175 grain head: arrows shot consistent left, nocks up, nocks to the right......and the arrows were pretty slanted to the right.

    Beman 340's with a 175 grain head: very inconsistent right to left, more right than left......nocks up, nocks to the right, arrows not slanted to the right half as much as the 400's.

    That is my story and I am sticking to it.
     

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