# Quick Answer: How Do I Know If My Arrow Spine Is Too Stiff?

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

A lighter tip INCREASES an arrow’s spine (makes it act more stiff).

If the arrow is too stiff it will favor the left side while if the arrow is a bit weak, it favors the right side..

## How long should my arrows be for a 29.5 inch draw?

For me it would depend on whether you’re wanting hunting arrows or target/3d arrows. For hunting I want the broadhead in front of my fingers, so for my 29.5″ draw I make my arrows so that they are 29.75″ total length. For 3d they are probably closer to 27.75″.

## What does GPI mean on an arrow?

grains per inchAll arrow weights are measured in grains per inch (GPI).

## 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.

## 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.

## Can an arrow be too stiff?

ABSOLUTELY YES,an arrow can be too stiff ,even when shot out of the compounds of today with loops and releases. The arrow has to absorb the energy that the bow inserts into it so it will stabilize and fly straight without any side motion to it.

## How do I know what spine arrow to use?

The first variable you need to look at is draw weight. As draw weight increases, so should arrow rigidity (spine). Also, we strongly recommend that you use an arrow with at least 5 grains of weight per pound or draw weight (if you are shooting a 60 lb. bow, you should use and arrow of not less than 300 grains).

## What happens if my arrow spine is too stiff?

Too stiff an arrow usually just slows the bow down with a heavier arrow. Too weak a spine arrow usually yeilds a faster lighter arrow. But the light spine cause the arrow to shoot way off the mark as the range increases.

## 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.

## Are 340 or 400 arrows heavier?

340 arrows are stronger/stiffer/harder in “spine” than 400 arrows because they bend less. 400 arrows are stronger than 500 arrows. … A weaker arrows is “softer”. Generally 600 arrows are for bows from 15–35 pounds in draw weight, 500 for 35–55 pounds, 400 for 55–75 pounds, and 340 for 75–95 pounds.

## How do you stiffen an arrow spine?

To stiffen the dynamic spine or reaction flex of the shaft during the shot you need to remove weight up front, cut the shaft shorter, add more weight to the nock end, or lower the draw weight.

## What does 400 mean on an arrow?

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.

## What happens if an arrow is too short for the bow?

Bending, known as “archer’s paradox,” occurs when an arrow is released from the bow. … 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.

## Can arrows be 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).

## 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.

## Does arrow spine affect accuracy?

Arrow spine comes back in play here. 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. … Optimizing the flight of your arrow is key to accuracy. While an arrow will necessarily twist and turn in flight, what you don’t want it to do is wobble.

## How long should my arrows be for a 27.5 draw?

For example, when choosing arrow length for a 27-inch draw, you cannot go for the same arrow one would use in a 28-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.

## 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”.