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Arrow Kinetic Energy (KE) = (Arrow Weight in grains (W) X Arrow Velocity in feet per second (V) X Arrow Velocity in feet per second (V)) / 450,800 » KE = (W X V2) / 450,800
Drop-away arrow rest will NOT eliminate bad arrow flight caused by grip torque. These rests will only help a little at best. However, these rests will solve fletching clearance problems.
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