Question: How Do I Know If My Arrow Spine Is Too Weak?

How long should my arrows be for a 29 inch draw?

While most people go for 27.5-inch arrow length for a 29-inch draw, a beginner would be happier with a longer arrow.

While this offers less power, it is considerably easier to aim with..

How do you determine the spine of an arrow?

Use the Spine Selector to find your perfect fit. Arrow length is measured from the throat of the nock to the end of the insert. If you are shooting a longer broadhead than field point, you may want to choose a slightly stiffer shaft.

How do you weaken arrow spine?

With arrows, it’s the same. If you want to adjust your arrow’s spine, you can shorten your arrow. This decreases its ability to flex. You can do the opposite too; you can choose to shoot a longer arrow to get a weaker spine.

Does draw weight affect accuracy?

A significant increase in bow draw weight will mean that the existing arrow no longer matches the bow. This will almost certainly compromise the bow’s accuracy. Draw weight is related to the limb design, not the string.

Is it better to shoot a stiffer arrow?

The stiffer the arrow, the less the bend. The less the bend, the more energy that goes into forward speed and the less drag on the arrow. When you think about it, logic seems to indicate that for a compound bow, using a release aid and a properly set up rest, the stiffer the arrow, the better.

How do I know if my arrow spine is too stiff?

If the arrow’s spine is too weak or too stiff, the arrow will not correct itself as soon as it should while in flight. If that arrow is weak and continues to flex (has a low spine rating), it’s going to veer off target. Likewise, if the arrow is unforgivingly stiff, it also won’t follow the path the archer intends.

What is the difference between 400 and 500 arrows?

The numbers refer to the spine of the arrow. The different spines refer to the stiffness, a 400 spine arrow is generally for bows 40-60 lbs. 350 spine is for bows roughly 55 – 75 lbs, and a 500 spine arrow is for bows roughly 30 – 50 lbs.

Is an arrow as deadly as a bullet?

An arrow is harmless at a distance of over 40 yards. An arrow is as deadly as a bullet. An arrow is not easily deflected. Basic firearm safety rules do not apply to archery.

Do heavier arrows fly better?

Arrows come in three weight categories: light, midweight and heavy. Lighter arrows fly faster and can group more tightly, but they’re often harder to tune. Heavier arrows fly slower but resist wind better and penetrate deeper. Shooting the wrong arrow weight for a bow can damage equipment and harm the archer.

What happens if your arrows are too long?

It can’t hurt if it’s too long if it’s shoots well for you. Too long and you have to have more spine which adds arrow weight, more fletching, and heavier tips for proper FOC (arrow balance).

How do I know my draw weight?

Draw Weight Recurves and longbows have incrementally heavier draw weights the farther they’re pulled. The standard for determining their draw weight is taken at 28 inches of draw length. The draw weight is marked on the bow’s lower limb with the pound sign (#),such as 35# @ 28”.

What does 400 mean on an arrow?

The most common spine sizes range from 260 to 500. As with combination arrows, a smaller number means the arrow has a stiffer spine. Therefore, a value of 340 indicates a stiffer and heavier spine while a value of 500 indicates the lightest and most flexible spine.

What do arrow spine numbers mean?

Arrow spine in its simplest definition is the measurement of the arrow’s stiffness. It measures how much an arrow will bend or flex. … The lower the numbers, the thicker the arrow while the higher the number, the easier the shaft to bend. For example, an arrow with spine number 400 is stiffer than a 600 spine arrow.

Why are my arrows fishtailing?

Often only a slightly suspect loose of the arrow can cause considerable fishtailing. … A clean shelf with a scuff mark left by a vane hitting it is a clear sign of a “clearance problem.” Clearance problems stem from nocking point height, centershot (arrow rest) misplacement, and arrow spine issues.

How heavy should my arrow be?

Overall Arrow Weights I think a good average hunting arrow should fall in the 6 to 8 grains per pound of bow weight, with lighter bows maybe even closer to 9 to 10 grains per pound. A typical 60-lb. bow should be in the 360- to 480-grain range, a 70-lb. bow in the 420- to 560-grain range.

What happens if your arrows are too lightly or heavily spined for your bow?

Every arrow shaft has a degree of stiffness called spine, which is its resistance to bending. … If your arrows are too lightly or heavily spined for your bow, the “archer’s paradox” movements will be extreme, resulting in poor arrow flight and loss of accuracy.

How do I increase my arrow spine?

to increase spine would be to decrease draw weight, meaning shooting less fps making the arrow stiffer. to decrease spine would be to raise draw weight meaning shooting more pounds producing more fps.

What is the difference between 340 and 400 arrows?

The difference is in “spine” or the bendiness of the arrow. A 340 spine arrow is stiffer (more resistant to bending) than a 400 spine arrow. When arrow tuning, for arrows of the same length, 340 arrows may tend to pull left (an indicator of Too Stiff) while 400 arrows may tend to pull right (an indicator of Too Weak).