Arrow Spline Chart
Arrow guide devin o dea 2019 07 26t15 14 37 07 00.
Arrow spline chart. Unlike aluminum fiberglass or carbon glass shafts the spine weight of port orford cedar arrows is virtually natural and cannot be. For bows with over 40 letup go down one spine group. Given a specific arrow spine an arrow that is shorter will be more rigid than a shaft of the same spine that is longer.
The spine number in the intersecting cell is the required spine for your set up. Arrow spine charts simplified arrow spine charts some arrow manufacturers have very complex charts which take many variables into account. The lower the number the stiffer the arrow.
For example if you have a 60 lb. Follow row until you arrive at the column with the arrow s carbon length. If you are shooting a 125 grain tip point weight add 5 pounds of draw weight to calculate your proper.
Bow with a 24 arrow you would need a more flexible shaft than a 60 lb. For target arrows drop down one spine group. For example a 330 arrow is stiffer than a 500 spine arrow.
Chart assumes 25 40 compound letup. For draw lengths over 30 go up one spine group per inch over 30. This chart is to be used for shooters using a 100 grain tip point weight.
Here is what arrow spine means and how it affects the flight of your hunting arrow. The spine rating of an arrow is simply a measurement of its stiffness. The same easton arrow comes in a variety of stiffness.
Bow with a 30 arrow.