Wood arrow ?

[Robert Honaker]

I'm currently shooting 2117's.

I want to try wood.

What wood spine would be the equivilant to a 2117?

[Arrow4Christ]

An 86# wood shaft is virtually the same spine as a 2117, putting you in the 85-89# spine group.

Craig

[Robert Honaker]

WOW! That's crazy.

I know it should be stiff, but I'm only shooting 56@29. 30in arra.

For some reason people always tell me I'm overspined with every bow/arra combo I have owned. Must be my super smooth release...  

[Arrow4Christ]

It also has a lot to do with center shot.

[Don Stokes]

Robert, the wood arrow spine scale originated with all-wood self bows. Unless that's what you're shooting, you will need much more spine than the rated draw weight, and for 30" arrows you add another 10#. It adds up fast. If you're shooting a high-end longbow or recurve, Craig is right on.

[Don Stokes]

Yep.

[Robert Honaker]

It's a Silvertip.

Is a shaft of that spine hard to come by?

[Hot Hap]

I'm at work right now, but I think that a 2117 spines @ 78#. Hap

[Arrow4Christ]

Robert,
Not in Douglas Fir     I shoot 80-84# and Surewood gives me a steady supply.
Craig

[JRY309]

I find it hard to make comparisons of different arrow types.I mean carbon and aluminum are spined on 28" centers and wood is spined on 26" centers.Plus most woods of that spine range will be 23/64" and the 2117 is 11/32".Two different diameters and will react differently.JMO

[snag]

80#-85# Surewood douglas fir shafts at 11/32" tapered to 5/16" is a beautiful thing!

[Arrow4Christ]

JRY309,
I can readily get 11/32" shafts over 100# from Surewood.
Craig

[Bjorn]

Call them and ask-they had them up to 115 last time I checked.

[LimbLover]

What about your tip weight? I don't think you mentioned that. Kind of a big deal. I recently got my first set of firs. I was shooting a 2219 with a 145g tip at 31" out of a 57lb bow that has an extreme cut to center. I ended up with an 85# spine with 190g up front. It does add up very quick.

You could give Rick a call at thefeatheredshaft.com if you want another opinion too. He helped me out A LOT.

[frank bullitt]

H.H. is right, 78#. I just checked on my  tester, an Adams. I shoot 29.5 bop, 2117, 160 gr pt. this is out of my 58@ 27" mild r/d longbow.

As of late have been shooting 77-80 spined, pine shafts with same pt. weight. Nice shafts from Lost Nation.

So I guess I would say try around 80-85 with the wood. Your bow is most likely center shot, and using High performance string?

Those Surewoods sound great!

[Arrow4Christ]

Robert,
The only way to know for sure what's going to work would be to shoot a few different spines to find out...which is something I can help you with as well as some others. I confirmed the spine with the dynamic spine calculator, but variables like going to a new shaft material may make enough of a difference to throw you up or down a spine range.
Craig

[Old York]

I'm with HH too, the 2117 is 77-78 pounds, static spine. Now, how it may shoot dynamically compared to a wood shaft is anyone's experiment, and to lump static and dynamic spine together with different materials is erroneous.

BTW, one can take Easton's deflection of the 2117 (0.400" or 0.407", depending where one looks in Easton's literature), and convert that to a mathematical equivalent 'old AMO' deflection of 0.330" or 0.336", using a conversion factor of 0.825. You can crunch out the numbers and come up with aforementioned 77-78 pounds spine.

[David Mitchell]

I can't imagine you needing anything like 80-85# spine.  I can shoot 60-65# spine all day in my longbows that are 55-58 at my 29"draw.  Add another inch and maybe go to 65-70.  But you just have to test and see--your relase may be very different than mine, how you griop the bow, etc, so what we can shoot may not work for you. This is highly individualistic stuff.

[snag]

Bows cut close to center can shoot a wide range of spines well, unlike a longbow that needs a weaker shaft in order to flex around the riser.

[Buckeye Trad Hunter]

This is from the TBM tip of the week from a couple months ago.  They're all pretty good but I always save the ones that could be really usefull to me.  On the actual tip itself there is a table chart with draw weight/length spine ranges but I couldn't get it to copy and paste.

Wood Arrow Spine

 
 By T. J. Conrads
from The Traditional
Bowhunter's Handbook

 
To get arrows with the correct spine for your bow you first need to know your exact draw length and the weight that you are pulling from your bow. The standard measurement for a bow is based on 28", but many of us fail to draw to that length; most of the time we draw less. A rule of thumb is to add five pounds of spine for each inch over 28" as well as an additional five pounds for the broadhead. For each inch under 28", you will subtract five pounds. For example, if you are drawing 65 pounds at 29" you would add five pounds for the inch over 28" and another five pounds for the broadhead, ending up needing an arrow spined at 75#. I would also err on the high side, adding another five pounds. In this case, I would opt for shafting that is spined 75# to 80#.

 

A recurve bow will generally accept a wider range of spine in its arrows because of the near centershot design of the bow. A longbow, on the other hand, will require a tighter tolerance due to the arrow having to bend farther around the bow's riser when shot. But this is not true for all archers.  Bow weight, bow design, release, and numerous other individual shooting characteristics will all play a part in what spine arrow will work best for you.