How to Choose the Right Arrow Spine

Picking the right spine of arrow for your bow can be a challenge. Watch as we breakdown what arrow spine is, and we discuss all of the tools available to the archer for finding the right spine for their bows.
See Arrow Spine charts: www.3riversarchery.com/pdf/Ar...
See Dynamic Spine Calculator: www.3riversarchery.com/dynami...
See Arrow Test Kits: www.3riversarchery.com/buy/ar...

[@greenhoodedvigilante458]

What I've found that in most spine chart, it suggest stiffer spine than what is actually needed for the bow. Specially, the dynamic spine chart proves that. Test kit is the best option, dynamic spine calculator is next. For bareshaft tuning, it’s better to start with an arrow that's an inch longer than preffered arrow length, for center shot bow. For self bows, even longer, 2" at least.

[@SaneAsylum]

Probably for liability reasons. Too weak can blow up. Too stiff just won't be as accurate. Many people happily shoot over-spined their whole life.

[@RiverbendlongbowsOutdoors]

Very good 👍 Passing this on to my customers Thank you

[@3RiversArchery]

Happy to be of help!

[@MarcassCarcass]

I don't understand, what's the dynamic spine calculator on the website showing me if i have a generic recurve bow drawing 50lb at 28", says that it is a 59.1 dynamic spine? The arrow specs i entered in the calculator, which included a 0.3" shaft diameter, amounted to a 400 spine arrow, 457.9gn in weight, shooting at 8GPP, with 15.6% FOC, etc, says that it's a 469.5 dynamic spine? Then there's something that says "these two numbers should be nearly equal, withing 2#". I just don't follow what it's trying to tell me.

[@3RiversArchery]

If you can email us a screenshot of what you put in the fields would be best. My guess is you selected shaft of "other" and entered 400 in the static spine field. This is mainly for wood arrow spines. Your best bet is to pick a similar related carbon arrow in 400 spine as it translates the static spine over properly.

[@geneg5870]

Carbon arrows: I have little experience with carbon. Is a 350 shaft more stiff than a 500 shaft or is it the other way around?

[@jacobhalverson6278]

Yes 350 is much stiffer than a 500 spine. you have it correct the lower the number the stiffer the spine, the higher the number the weaker the spine

[@3RiversArchery]

The numbers are the measure of deflection, so the larger the number the more the arrow bends under the weight. So the 350 is a stiffer spine then a 500 spine.

[@geneg5870]

@@3RiversArchery thank you very much 👍🏹

[@geneg5870]

@@jacobhalverson6278 thank you very much 👍🏹

[@johnCornish-ll8lf]

45# 27 inch draw shoot 100 tip what spine should i shoot

[@3RiversArchery]

I would suggest a 600 spine at 29" length. Assuming the 45# is at 27" that is.

[@benjamindahler3710]

Name of errows plaes

[@3RiversArchery]

The carbon arrows are Traditional Onlys www.3riversarchery.com/traditional-only-fletched-carbon-arrows.html Wood are 3Rivers Hunter Arrows www.3riversarchery.com/3rivers-hunters-wood-arrows.html and aluminum are Easton Gamegetters www.3riversarchery.com/easton-gamegetter-xx75-aluminum-arrows.html