What is an IBO arrow?
What is an IBO arrow?
IBO is the arrow speed according to the IBO specification in ft/s, L is the draw length in inches, W is the additional weight on the bow string in grains, A is the arrow weight in grains, and. D is the draw weight in pounds.
How do I check my IBO speed?
IBO speed is measured by shooting a bow with an 80-pound draw weight (+/- 2 pounds), maximized draw length, and a 400-grain arrow. ATA speed is measured with a 70-pound draw weight (+/- .
What is the difference between 350 and 500 arrows?
The numbers refer to the spine of the arrow. 350 spine is for bows roughly 55 – 75 lbs, and a 500 spine arrow is for bows roughly 30 – 50 lbs.
What does IBO stand for in archery?
the International Bowhunters Organization
IBO stands for the International Bowhunters Organization. The International Bowhunters Organization has created a standard for bows which is produced through a test. The IBO speed is obtained by shooting a bow with the maximum pull weight of 80 pounds +/- 2 pounds.
How is IBO calculated?
Well, the IBO speed of a bow is calculated using a bow with a draw weight of 70 lbs, a draw length of 30 inches, and an arrow weight of 5 grains per pound of draw weight. So, that would mean a 70-lb draw weight would be shooting an arrow that weighs 350 grains (70 x 5 = 350).
What happens if your arrows are too lightly or heavily spine 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.
What size arrow do I need for a 28 inch draw?
around 27 inches
If you’re a 28-inch draw length and want an arrow that ends at the front of the riser, your arrow length would be around 27 inches. However, your arrow length can be longer if you need to weaken the spine of your arrow. For safety reasons, your arrows shouldn’t be cut too short.
What are the most powerful bows?
What are the world’s most powerful bows?
- The English longbow is famously powerful.
- The Mongololian recurve bow helped build an empire.
- The Scythian bow was deadly, for its time.
- The Turkish bow helped build the Ottoman Empire.
- The Japanese Yumi bow was another deadly bow in history.
What is the IBO speed of a bow?
The International Bowhunters Organization has created a standard for bows which is produced through a test. The IBO speed is obtained by shooting a bow with the maximum pull weight of 80 pounds +/- 2 pounds. The arrow used will be 400 grains or 5 grains per pound of draw weight. No required draw length.
What is the IBO arrow weight for hunting?
IBO speed tests are conducted using 350 grain arrows, however most people will be hunting using arrows weighing a minimum of 425 grain. That’s 75 grain over the IBO arrow weight, which reduces FPS by an estimated 22 FPS.
What does the IBO rating of a compound bow mean?
You might have seen where compound bows have an IBO rating. But, what does that really mean? Well, the IBO speed of a bow is calculated using a bow with a draw weight of 70 lbs, a draw length of 30 inches, and an arrow weight of 5 grains per pound of draw weight.
How do you measure IBO speed?
The IBO speed is obtained by shooting a bow with the maximum pull weight of 80 pounds +/- 2 pounds. The arrow used will be 400 grains or 5 grains per pound of draw weight. No required draw length. The measurement is taken at the bow’s point blank range.
