how do I detemine spine?
 

I want to make the switch to wooden arrows, and not sure what my spine group would be. I have a 27in (maybe slightly less) draw and a 50# (slightly less) bow. Not sure how to determine my spine group. any help appreciated. thanks.

RE: how do I detemine spine?
 

you need to know your exact draw length and weight. from the sounds of it you need a 50-55# spine rated shaft. but then you also throw in the weight of your point and that can also move you up or down a spine rating.

RE: how do I detemine spine?
 

To tell you the truth, I would call either the bow maker,or the arrow maker that you are going to use. You'll get a lot of different answers here. Even then depending on your release, you'll have only a starting point.

RE: how do I detemine spine?
 

Alot of factors involved--FF capable,center shot,point weight,draw length

RE: how do I detemine spine?
 

Take it to a bow shop.my shop has a rig that figures it all out.they put the bow in the rig and put a scale on your string and pull down on it to your draw length and presto you have your correct spine.

RE: how do I detemine spine?
 

I'd be very careful with something like that. To me, all that could be found by pulling a string back is draw weight.

RE: how do I detemine spine?
 

For trad bows, I get the shaft that is closest to the weight of the bow at my draw lenght. I have them cut on the long side so I can cut them down. I then bare shaft test them agianst fletched ones. I then adjust length to the head I want to use. I do this with wood, carbon or alluminum. Havent used wood in year, many many years, but that is how I do it.