When it comes to archery, arrow spines play an important role in the overall performance of a bow. Spine is the stiffness of the arrow shaft and is measured by the amount of deflection (bending) the arrow experiences when a certain amount of force is applied. Each archer needs to understand the differences between a compound bow and a traditional bow and the corresponding arrow spine requirement for each.
Table of Contents
What Is Arrow Spine
Arrow spine refers to the stiffness of the arrow’s shaft. It is measured by the amount of “deflection” that occurs when a certain amount of force is applied to one end of the arrow. When the arrow is shot from a bow, the force of the bowstring makes the arrow flex, and the stiffness of the arrow shaft determines how much it bends.
The importance of having the right arrow spine cannot be overstated. Having an arrow spine that is too weak or too stiff can affect how well the arrow flies through the air. An arrow with inadequate spine will “wobble” in flight, while an arrow with too much spine may not penetrate well when it hits its target. Therefore, it is important for any archer to know their arrow spine and choose the right one for their bow.
Compound Bow vs Traditional Bow
When considering the difference between a compound bow and a traditional bow, it’s important to understand the different respective arrow spine requirements.
Compound Bow
A compound bow has limbs that store energy when the bow is drawn, allowing for greater accuracy and distance. A compound bow typically requires a lighter spine arrow than a traditional bow because of the leverage of the cams and energy stored in the limbs.
Traditional Bow
A traditional bow, on the other hand, relies on the strength of the archer to draw the bow. As a result, traditional bows typically require arrows with stiffer spines than compound bows.
When choosing an arrow spine for a compound bow, the most important factor to consider is the draw weight. Too light of an arrow spine for a heavy draw weight will cause the arrow to “tail wag” in flight and be inaccurate. On the other hand, too stiff of an arrow spine for a light draw weight may make the arrow settle too quickly after release.
It is also important to consider arrow length when choosing the correct spine for a traditional bow. Longer arrows generally require stiffer spines as they’ll flex less than shorter arrows.
Conclusion
Arrow spine is an important factor in determining the performance of a bow. Compound bows typically require a lighter spine arrow than traditional bows due to the leverage and energy stored in the limbs. When choosing the correct spine for a compound bow, the draw weight and arrow length should be taken into consideration. By understanding the differences between a compound bow and a traditional bow and the corresponding arrow spine requirements, the archer will be better equipped to select the right arrow for their bow and ensure accurate and consistent shooting.
In conclusion, an understanding of arrow spine is essential for any archer. A properly matched arrow spine will ensure the best performance for a bow, whether it’s a compound bow or a traditional bow. Careful consideration should be given to the draw weight and arrow length when selecting an arrow spine for optimal shooting performance.
What is the difference in Arrow spine from a compound bow
We test two different spined arrows at 40 meters and see which one groups better or if there is any difference.
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Last update 2021-01-05. Price and product availability may change.