- Deflection measures such as.500,.400, and.350 are often used. These measures correspond to the spine sizes that the majority of manufacturers use to label arrows on the arrow shafts. The Importance of the Spine
What is the difference between 400 and 500 spine arrows?
The spine of the arrow is represented by the numerals. The stiffness of the arrow is indicated by the number of spines; for example, a 400 spine arrow is typically used with bows weighing 40-60 lbs. A 350 spine arrow is designed for bows weighing between 55 and 75 pounds, and a 500 spine arrow is designed for bows weighing between 30 and 50 pounds.
What does 400 spine arrow mean?
The length of this arrow spine is expressed in numbers. The lower the numbers, the thicker the arrow, and the higher the numbers, the simpler it is to bend the shaft of the arrow. An arrow with spine number 400, for example, is stiffer than an arrow with spine number 600.
What does 500 mean on an arrow?
The most frequent spine sizes are in the range of 260 to 500mm in diameter. In the same way that combination arrows have a firmer spine, a lower number indicates a more flexible spine. The result is that the stiffer and heavier the spine, the higher the value, whereas the lighter and more flexible the spine is indicated by a higher number, such as 340.
What is the difference between 340 and 400 arrows?
The difference lies in the “spine” of the arrow, which indicates how bendy it is. In comparison to the 400 spine arrow, the 340 spine arrow is stiffer (i.e., more resistant to bending). For example, while tuning arrows, 340 arrows may tend to pull to the left (an sign of Too Stiff), whereas 400 arrows may prefer to pull to the right (an indicator of Too Soft) (an indicator of Too Weak).
Is a 400 grain arrow good for hunting?
A 400 grain arrow at 305ish feet per second (which is probably somewhat quicker than your set-up) has worked well for me on deer in the past. If the positioning is correct, it will blow straight through them. Even though I haven’t taken an elk with that setup, I wouldn’t be concerned about it.
What happens if your arrows are too lightly or heavily spine for your bow?
Every arrow shaft has a certain amount of stiffness known as spine, which determines how resistant it is to bending. Because of the excessive motions caused by the “archer’s paradox,” arrow flight and accuracy will suffer as a result of using arrows that are either too lightweight or strongly spined for your bow.
How many grains is a 500 spine arrow?
Stronger spines tend to weigh less than weaker spines, which in turn tend to weigh less than stiffer spines. An arrow with a 500-spine weights 7.3 grains per inch on average, whereas a similar model with a 300-spine weighs 9.3 grains per inch, according to the manufacturer.
What is a 350 spine arrow?
Spine that is not moving The spine of the arrow is equal to the product of the number of inches the arrow bends multiplied by 1,000. As a result, an arrow with the number 350 bends. When the weight is added, the height is 350″. This has a direct relationship to the arrow “bend.”
How heavy of an arrow should I shoot?
If you want to target practice, you want an arrow that weighs around 5 to 6 grains per pound of draw weight in total (shaft, vanes, insert, nock, and field point combined). As an example, if your bow has a draw weight of 60 lbs., you should use arrows with a total weight of between 300 and 360 grain.
What does 300 mean on arrows?
This is a short-distance, short-duration race that may be completed in less than an hour, depending on the weather. It is typically shot at a distance of 18 meters (20 yards). This board is made up of thirty arrows, each of which is worth a maximum of ten points.
What size arrows for a 30 inch draw?
According to the Easton spine chart, a spine of 250 should be used for a 30-inch arrow fired with a bow set at 70 pounds. If you shorten that arrow length to 28 inches, the spine chart suggests a 340 spine length for you. Compared to the 250, this is really two spine classifications weaker. Is it possible for an arrow to be excessively long?
What is the difference between 300 and 400 spine arrows?
The term is SPINE, and there is a difference of one inch in deflection between 300 and 400 degrees Celsius. The total length of the arrow and the weight of the tip will decide what spine you will want for the poundage you select to shoot.
What spine arrow should I shoot with a 70 lb bow?
There is a 1 inch variation in deflection between 300 and 400 degrees in the word SPINE. The total length of the arrow and the weight of the tip will decide what spine you will need for the poundage you select to shoot. Total length and tip weight
How do I find my actual draw length?
Place your back against a wall and stretch both of your arms out against the wall to determine the length of your draw length. Simply measure the distance between the ends of your middle fingers on both arms, hands, and chest. This is the length of both arms, hands, and chest. Your draw length is calculated by subtracting 15 from this measurement and dividing the result by two.
What spine arrows should I shoot?
As the draw weight of the arrow rises, so should the stiffness of the arrow (spine). In addition, we highly advise you to use an arrow with at least 5 grains of weight per pound of draw weight while shooting (if you are shooting a 60 lb. bow, you should use and arrow of not less than 300 grains).