Do I Need To Retune My Bow For Different Arrow Types?

Understanding Cam Timing

When switching arrow types, the first consideration is cam timing. Cam timing refers to the relationship between the bow’s draw cycle and the arrow’s flight. A bow that’s properly tuned for a specific arrow weight and spine will exhibit a consistent cam timing. If you’re switching to a significantly heavier or lighter arrow, the cam timing may become misaligned, affecting accuracy and arrow speed. To adjust cam timing, use a walk-back tuning method, where you incrementally adjust the arrow rest position while monitoring arrow flight. Aim for a cam timing of 90-110 degrees, with 100 degrees being the optimal setting.

The Role of Paper Tuning

Paper tuning is a crucial step in bow tuning, especially when switching arrow types. This involves shooting arrows into paper targets at various distances to determine the optimal arrow rest position. To use paper tuning effectively, set up a consistent shooting schedule and use the same arrow rest position for each shot. Analyze the resulting holes on the paper target, looking for a consistent pattern and minimal deviation. When switching arrow types, repeat the paper tuning process to ensure the arrow rest is properly adjusted for the new arrow.

Adjusting the Arrow Rest

The arrow rest is a critical component in bow tuning, as it affects arrow flight and accuracy. When switching arrow types, you may need to adjust the arrow rest position to compensate for differences in arrow weight and spine. As a general rule, for every 1 oz (28 grams) of arrow weight increase, you should move the arrow rest 1/16 inch (1.5 mm) back, and for every 1 oz decrease, you should move it 1/16 inch forward.