Home Forums Campfire Forum Elk Arrow Spine Suggestions

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    • CareyE
      Member
      Post count: 111

      I am looking for some arrow spine suggestions in hope of narrowing down my choices without spending a lot of money.

      I shoot a GN Bushbow 58lbs @ 26 inches. I would like to shoot Easton FMJ with A 225gr TuffHead and a glue-on 125gr point adapter for my trip out west.

      I now shoot a 4 fletch 27″ FMJ with a 125gr tip with good arrow flight. I have never really experimented with “heavy” points before and I don’t know how much spine is affected by it.

      Any help is greatly appreciated.

    • Troy Warner
      Post count: 239

      I believe that Three Rivers Archery has a FMJ test kit. If they don’t they will be able to help you narrow down the choices with the info you have given. Custom King has also been a good source of spine help for me in the past. They will need to know what arrow you are shooting now. A FMJ 340,400 or….

      Good luck.

    • Amoose
      Post count: 80

      A heavier Broadhead will cause a spine reduction, as the increased weight on the front will cause the arrow to flex more upon release, finding a balance between weight forward (FOC) is critical for proper arrow flight.

      I also beleive (my own opinion) that is is better to be overspined, than under, as my arrows seem to have less “wobble” in flight.

    • CareyE
      Member
      Member
      Post count: 111

      I believe I will need a stiffer arrow. I was just wondering about how much, say to the 400 or the 340’s.

    • Amoose
      Post count: 80

      CareyE wrote: I believe I will need a stiffer arrow. I was just wondering about how much, say to the 400 or the 340’s.

      Not really sure w/o experimentation, but adding 225 gr.,,,

      I would go at least 10# up in spine, but I shoot cedar, dont really know what those numbers mean…

    • Steertalker
      Post count: 83

      Carey,

      What spine you choose should be dictated by which spine tunes the best. It’s not about what you like….it’s what your bow likes.

      With that said I would think a 400 spine is what you need for your set-up.

      Brett

    • Troy Warner
      Post count: 239

      Carey,

      I have tuned an easton traditional 400 (equivalant to FMJ 400 spine per 3 Rivers Archery)with 200 grain target head out of a lond bow with a shelf cut close to center drawing 51.5# @26″ the arrow ended up 29 and 1/4″ back of point to valley of nock. I put a 250 grain target head on and according to how that one flew I could cut the arrow down another 1/4″.

      so I would think that a 58# bow at 26″ with a 225 gr head, depending on how long you want your arrows if shorter than 29″ I think the 400 should work if you like 29″ or longer you may want to think about the 340. You can get brass HIT inserts if they are still just a little to stiff to help with the final tuning to your bow.

      before you buy a dozen of either i recomend you see if you can find one of each 400 and 340 FMJ to try out and pick the one that shoots best from your bow.

      whatever you decide on good luck.

    • CareyE
      Member
      Member
      Post count: 111

      Thanks for the advise. I’ll let you know what I come up with.

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