F.O.C. is an abbreviation for “front-of-center” in the field of archery. The fraction of the arrow’s total weight that is placed in the front half of the arrow is referred to as the front half of the arrow’s FOC. The greater the amount of weight that is concentrated in the front part of the arrow, the more forward the arrow’s center of balance is positioned.
What does FOC in archery mean?
Front of Center balance point (FOC) is an abbreviation for Front of Center balance point. This measurement is derived from the relative weights of the components of the arrow, which include the shaft, insert, tip, fletching, and nock, among others. A well balanced arrow has dimensions ranging from 7 to 15% of its length. For additional information on determining arrow weight and FOC, please visit this page.
Is 15% FOC enough?
The ideal concentration of foc is about 10-15 percent.
How much FOC do I need for traditional archery?
Up to 12 percent is considered regular FoC; 13 percent to 19 percent is considered high FoC; and 20 percent and above is considered severe FoC, which is exactly what we want in a large game arrow system. For the most part, as long as arrow flight stays faultless, the higher the field of combat (FoC) and hence the better the penetrating capability.
What is considered high FOC?
According to the industry, 8-12 percent FOC is usual. A high FOC arrow has a starting point of roughly 15 percent and can go as high as 30 percent.
What is good arrow FOC?
FOC is highly recommended. The ideal FOC for hunting arrows is between 10-15 percent, which is considered optimal. Arrows with a greater FOC will carry more power and penetrate more effectively than arrows with a lower FOC value.
How much FOC do I need for elk?
In addition to penetration, the front of center (FOC) of an arrow is vital, and I try for a FOC of at least 12 to 13 percent or higher. It is possible to get away with a lighter, flatter arrow if your draw weight and arrow speed are outstanding (far above 300 fps), but I would not recommend going any lighter than 400 grains under any circumstances.
What is a good FOC for hunting?
Your objective is to shoot an arrow with a FOC of between 11 and 15 percent on the first shot. This is perfect for hunting setups since it ensures pinpoint accuracy over a longer distance while hunting.
How heavy should arrow be for elk?
420 grains is the minimum final arrow weight that I suggest for hunters drawing 60-70 pounds while hunting elk with a bow. Despite the fact that bows are getting more efficient and that lower-poundage bows are capable of bringing down huge game, higher-poundage bows will undoubtedly aid you in taking down large wildlife.
How heavy should a deer arrow be?
I believe that a decent average hunting arrow should weigh between 6 and 8 grains per pound of bow weight, with lighter bows perhaps weighing as much as 9 to 10 grains per pound of bow weight. A normal 60-lb. bow should be in the 360- to 480-grain range, and a typical 70-lb. bow should be in the 420- to 560-grain range, according to the manufacturer.
How do you calculate FOC in arrows?
Calculator for the Forward of Center (FOC)
- From the neck of the nock to the end of the shaft, determine the length of the arrow shaft. divide the total length number by two to get the fractional length number (2). (
- Find the point at which the arrow is balanced. To find the balancing point number, subtract half of the entire length from it. Multiply the result by a factor of 100.
How do you find the FOC of an arrow?
When calculating FOC percent, the usual formula is FOC percent = 100 x (AL/2)/L, where L is the right arrow length, and A is the distance from the nock groove to the final arrow balancing position, which includes the arrow point/insert weight, nock, and fletching, respectively.
What is a good FOC for crossbow bolts?
An aircraft with a high factor of safety will fly with good steadiness, but it will lose its direction more quickly and nosedive. As opposed to this, while a crossbow bolt with a low factor of caution will maintain its trajectory better, the bolt will also fly more erratically. For hunting conditions, crossbow bolts with 10-15 percent F.O.C. are recommended for hunting setups and best accuracy, according to the manufacturer.
Do heavier arrows fly better?
Arrows with a lot of weight penetrate better. The first reason it’s critical to select the greatest hunting arrow is that once an arrow departs the string, it no longer has the ability to push itself forward. According to Newton’s Second Law of Motion, the quicker arrow has a bigger influence on the deceleration of the faster arrow, which causes it to decline faster than the slower arrow.
Is a higher FOC better?
Those who support high FOC equate the point weight of the arrow to a rock, and the string to the fletching portion of the arrow. As a result of this idea, many people assume that a high FOC will also result in more penetration, which is often achieved by shooting a longer, heavier arrow.
What happens if you shoot an Underspined arrow?
Shooting an arrow that is not stiff enough, or a collection of arrows that are of different stiffnesses, can lead you to be less precise in your shooting. An arrow with a weak spine will veer to the right, whereas an arrow with a stiff spine would deviate slightly to the left.