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Bow poundage, usually called draw weight, is the amount of force required to draw the bowstring back to a normal shooting position. Poundage means that this weight is measured in pounds, but you could also use kilograms or ounces. Having the right draw weight is important for good bow and arrow performance, especially if you’re a competitor. Sometimes the weight needs adjustment if the string is too difficult or easy to draw back. Luckily, checking the draw weight is easy. You can either use a manual or digital scale to take a measurement. After this, you’ll know if your bow has a good draw weight or needs some maintenance.
Steps
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Slide the scale indicator back to the starting position. A standard bow scale looks like a long tube with a hook on the end. An indicator along the side of the tube shows the poundage of your draw. If this isn’t in the zero position when you start, slide it back into the start position for an accurate measurement. [1] X Research source
- It's possible for the spring in the scale to wear out and give you an inaccurate measurement. If your scale is starting to give inconsistent measurements, then you probably need a replacement spring. A professional at a bow shop should be able to replace it for you.
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Place your middle and index fingers on the scale finger rests. On the front of the scale, there are 2 finger rests that make a small T shape. Place your index finger on the top one and your middle finger on the bottom one, then wrap your thumb and other fingers around the tube. [2] X Research source
- Use the hand that you usually draw your bow with. If you’re right-handed, then hold it in your right hand.
- Make sure the numbers on the scale face you, otherwise your hand might block the indicator. [3] X Research source
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Hook the scale around the arrow nook on the string. At the end of the bow scale where your fingers are, there is a rounded hook. Loop this around the bowstring in the same place that you’d put an arrow. [4] X Research source
- Test to make sure the scale is attached a few times before you draw it back fully. Pull back a bit to make sure the hook doesn’t come loose.
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Hold the bow up with your arm stretched out straight. Grab the bow handle with your free arm and lift it into your normal shooting position. For most people, this means that your lead arm should be straight and in-line with your elbow. Hold the scale in position like it’s an arrow. [5] X Research source
- Don’t point the bow at any people or things that could break. If you let go of the scale, you could shoot it like an arrow.
- Some professionals like to nock an arrow while they’re measuring the poundage to mimic their draw length when they’re actually shooting. However, if you’re not experienced using a bow scale, don’t do this. If you release the string accidentally, you could shoot the arrow.
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Pull the string back smoothly until you reach your normal draw length. Draw the string as if you were getting ready to shoot an arrow. Continue until you reach your normal draw length. For most people, this is right around their ear. Hold it in position for a few seconds to take a measurement. [6] X Research source
- Do not let go of the scale at any point. If you feel like you’re losing your grip, then release the tension slowly.
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Let the tension off of the string smoothly. Don’t simply let go of the bow or scale while you have the string drawn. This could send the scale flying. Instead, bring your drawing arm forward at an even pace until there’s no more tension on the string. [7] X Research source
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Check the indicator line on the bow scale to measure the poundage. The indicator on the scale will measure the poundage of your draw. Check the number that it’s pointing to and you’ll know the poundage of your draw. [8] X Research source
- Slide the indicator back to zero so you’re ready for the next measurement.
- You might want to check 2 or 3 times to confirm your first measurement.
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Set the scale to “pounds” if you have the option. Some digital scales can cycle between different units of measure. Look for a button labeled “unit” and press it until the scale says “pounds” as its unit of measure. [9] X Research source
- You can also use a different unit of measure if you’d like.
- Always check the instructions on the scale you’re using for the proper procedure.
- Some scales have on switches and others might simply activate when you press a button.
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Press the “tare” button to zero the scale. On most digital scales, the “tare” button sets the scale back to zero. Hit this before every measurement to make sure your scale gets an accurate measurement. [10] X Research source
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Hang the scale on a secure mount on the ceiling. You need to hang the scale from something strong that will stay in place while you pull the bow. Some people use a chain or secure ropes, and others drill a hook directly into their ceiling. This will all work as long as it can support enough weight. Loop the circular attachment on the scale into this mount. [11] X Research source
- Many bows have a draw weight of over 60 lb (27 kg), so you need a mount that can hold at least that much weight.
- Do not use a nail or screw in the ceiling to secure the scale. These aren’t strong enough and could pop out.
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Hook the scale around your bow string in the arrow section. Take your bow and place it into the scale hook in the same place you’d nock and arrow. Make sure the string is secure before trying to pull it. [12] X Research source
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Pull the bow all the way down smoothly. Grab the bow firmly with one hand on either side of the handle. Then pull it down with firm pressure to measure its weight. Stop when the scale stops increasing, which indicates that you’ve hit the max draw weight. [13] X Research source
- An electric scale automatically measures the max draw weight on the string, so even if you pull it too far, this won’t make a difference.
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Raise the bow back up with steady pressure. Remember that the bow is under tension, so don’t let it go or it’ll shoot up. Raise the bow smoothly to release the tension. When you’re back in the starting position, you can let it go or take it off the hook. [14] X Research source
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Check the measurement on the scale. The scale saves and displays the last measurement it took. Check the screen to see the poundage of your bow. [15] X Research source
- You can confirm your measurement by measuring a few more times. Remember to hit “tare” to set it back to zero.
- Regardless of the bow's poundage, if you can't pull it back to your full draw comfortably, then it's too heavy and needs adjustment.
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Video
Things You’ll Need
- Manual bow scale
- Digital bow scale
Tips
- Always read the instructions for any scale you use to confirm the correct procedure.Thanks
- Standard draw weights are advertised with the bow pulled back to 28 in (71 cm). However, not all people draw their bows to the same distance, so the actual draw weight will be different.Thanks
- If you hunt with your bow, then you should use a draw weight as high as you can comfortably draw back. Otherwise, your arrow won't have enough power to take down an animal.Thanks
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Warnings
- Never let go of the bow or string while it’s under tension. You could accidentally shoot the scale like an arrow.Thanks
- Never point the bow at anyone, even if you don’t have an arrow in it.Thanks
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Expert Interview
Thanks for reading our article! If you’d like to learn more about archery, check out our in-depth interview with Clay Hayes .
References
- ↑ http://www.havenholde.net/ernie/baronyarchery/bowscale.pdf
- ↑ https://youtu.be/1M6cNsC1rp0?t=147
- ↑ http://www.havenholde.net/ernie/baronyarchery/bowscale.pdf
- ↑ http://www.havenholde.net/ernie/baronyarchery/bowscale.pdf
- ↑ http://www.havenholde.net/ernie/baronyarchery/bowscale.pdf
- ↑ https://youtu.be/1M6cNsC1rp0?t=160
- ↑ http://www.havenholde.net/ernie/baronyarchery/bowscale.pdf
- ↑ http://www.havenholde.net/ernie/baronyarchery/bowscale.pdf
- ↑ https://youtu.be/Tagm3RBfzaE?t=119
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