Getting a new bow takes some setting up. You need to tune your hunting bow to ensure accuracy.
1. String Travel and Stop
Once the bowstring flies forward pushing the arrow, it reaches a point where is is straight and relaxed. The force of the bow firing often pushes the string forward beyond this point. The longer the string influences the arrow, the greater the room for error. Also, once the string moves forward of its relaxed point, it flops around erratically.
There are two things to consider to deal with this. First, a new string will be more rigid and with specifications. Some pros recommend a new string every season while others recommend a new string after every so many shots. A new string can improve accuracy.
The second consideration is a string stop. If your bow has one, you need to adjust it so it has just a slight bit of pressure on the relaxed string. When the string hits the rubber stopper, it will stop and allow the arrow to continue without influence. The stopper will also dissipate recoil and lower noise. If your bow does not have a string stop, consider adding this accessory.
2. Center Shot
To check this, nock an arrow and measure the distance from the arrow to the front and back of the riser. The distances should not vary by more than a few millimeters at most. If it is off by more than that, try taking off your arrow rest and then re-installing it and adjusting it. If you cannot get it just right on your own, take your bow to a pro shop for paper tuning. This crucial relationship between arrow rest and bow can greatly effect accuracy.
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3. Draw Timing
You need a helper for this one. One of you needs to draw the bow and hold it at full draw. If your helper is not experienced, he or she should be the one drawing the bow. Observe the top and bottom cams as they roll over. They should roll off the full draw tension and into the valley at the exact same time. Some cams have lines, dots or some sort of indicator that help you check timing. The marks should be spaced equally on each side of your cable. If the timing seems off, you need a pro shop to make the adjustments.
4. Untrue Sights
This is also known as sight-level. Put your bow in a vise and make sure it is level. A torpedo level is good for this purpose. When the bow is level, check your sight level bubble. If the sight is not perfectly level with the bow, you need to adjust the first and second axis of the sight according to the instruction manual. Then you need to re-set your pins and sight-in.
5. Cocked Cam or Cam Lean
Lay an arrow along the top cam. The arrow should run parallel to your string. If the arrow is not parallel and especially if it crosses the string you could have a limb problem, limb pocket problem, cam problem or something else. Excessive lean will never produce maximum accuracy and may indicate a more serious problem that is manifesting. Take your bow to a pro shop to have this checked.
These five tips will have your bow ready for the season with maximum accuracy.