wooden arrows

[samickhunter]

g'day all

i am having trouble sorting out what spine wood arrows i need for my bow.the bow is a samick phantom recurve 55#@28.its 50#@ my draw length of 26"i would like to use 125gr and/or 145gr broadheads for pigs and goats.im thinking 60/65 woods if anyone has any suggestions or use the same sort of set up i would greatly appreciate some opinions

cheers mick

[Looper]

Go to this link and download the spine calculator.   http://heilakka.com/stumiller/

You'll need to input your specs and it will give you a pretty close starting point.  The one area to not overlook is the amount of cut your arrow rest has.  You'll also need to know what type of string you're using.

[ron w]

I would say that 55/60 @ 28+" with 125 0r 145 up front would be pretty close. You have to mess with the final length.

[samickhunter]

thanks looper i already have it mate
in the box under amo static spine
it says shaft grains per inch (gpi)what do i put in there i have been putting in 10gpi not sure if that is correct thanks for the feed back looper

cheers mick

[samickhunter]

thanks for the reply ron will have a go at that

[hkmp5]

Hello Mick,
For the GPI, in that spine range I would go with 12 for Sitka Spruce, 13 for Cedar, and 14 for Fir.  That should get you close for a finished shaft GPI.  I hope it helps you out!
-Stu

[Fletcher]

Mick, 13 or 14 gpi be close enuf.  Wood shaft weight varies a lot between types and even within a species.

How deep the shelf is cut will make a difference with your spine needs.  60-65's cut to 28" BOP should work if the bow is cut to center. You  will probably need to go up a bit if cut deeper.

[samickhunter]

thanks guys this is valuable info does anyone bare shaft their woods
cheers mick

[hkmp5]

Hello Mick,
Personally, I do not bare shaft woodies.  I will sometimes paper tune at varied distances but usually trust the eye and point of impact at long distances.
-Stu

[samickhunter]

thanks stu i have tried bare shafting but it seems most dangerous thing to do at times

fletcher the bow is cut past centre i shoot off the shelf with a fur rest

[Fletcher]

You may need to go a little stiffer or shorter then, Mick.  When we start adding up a few variable factors like arrow length and depth of cut, the formulas become less precise.  If possible, find or buy a few arrows in progressive spines and paper tune them with the point weight you want to shoot.  You will soon know exactly what spine range you need.  Such a set of test arrows is very valuable to someone who shoots different bows.  I have a bunch of test arrows that I loan out, but the shipping to and from would kill you.

[samickhunter]

fletcher i have some test arrows but unfortunately they on go up to 50/55
but working on the formula of
50#plus 5#=55
centre cut shelf add 5#=60
fastflyte string add 5#=65
takeaway 10# cause im 2"shorter than 28"
comes back to 60
im taking that on a 125gr b/h if i was using 145gr and up i would add on another 5#
but in saying do i go for the 55/60 or 60/65 woods
cheers mick

[Bjorn]

Making good woodies takes time and effort why would you not take a moment to bareshaft and make sure the flight of the finished arrow will be as good as it gets.

[Bowferd]

Bjorn,
 When I first started with woodies I bare shaft tuned but became wary and disgusted because I was breaking them at a record pace.
 My inexperience was costing me $'s.
 Stubborn fool that at times I have a tendency to be, I refused to seek wisdom. Kinda like a guy asking for directions when he's lost.    
 Since then I've found guidance.
 Thanks especially to you and others like Don Stokes, I now use a softer target for bareshafting woodies.
 There was absolutely no way to afford bareshafting wood before.
   

[samickhunter]

bjorn i probably will bare shaft i know nothing about bare shafting i have heard some people do it some dont bother some have had a shaft that wont shoot bare but put feathers and a point on and it flies perfect but in saying that bjorn i am after the perfect arrow b/h combination for this bow i was the same when i was rifle shooting if i couldnt get 5 shots in the size of a thumb nail at 100yards it wasnt good enough
cheers mick