Quick Answer
When tuning a compound bow at high altitude, consider adjusting for the lower air pressure by increasing the brace height, re-camming the bow, and fine-tuning arrow rest position. Proper tuning ensures optimal arrow flight and accuracy. Regular checks are crucial to maintain performance.
High Altitude Tuning Considerations
High altitude hunting requires precise bow tuning to compensate for the lower air pressure. A good starting point is to increase the brace height by 1/8 inch for every 1,000 feet of elevation gain. This adjustment helps stabilize the arrow in flight and reduces the risk of arrow wobble.
Cam Timing and Walk-Back Tuning
Proper cam timing is essential for smooth arrow release. At high altitude, cam timing may need to be adjusted to account for the lower air pressure. Walk-back tuning involves adjusting the cam’s draw cycle to achieve optimal arrow speed and accuracy. Aim for a 10-15% increase in arrow speed at high altitude.
Paper Tuning and Arrow Rest Adjustment
Paper tuning, also known as “tuning against the clock,” helps identify any deviations in arrow flight. To paper tune at high altitude, shoot arrows against a backstop and measure the arrow’s impact point. Adjust the arrow rest to optimize arrow flight and accuracy. A general rule of thumb is to adjust the arrow rest 1/8 inch at a time, checking arrow impact points after each adjustment.
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