Determine Forward of Center Balance Point



Inches




Inches
Calculate
Created with Raphaël 2.1.0Measure the length from the throat of the nock to the end of the shaftMeasure distance between throat of the nock to the balace point

FOC : ... %


(Properly balanced arrow : 3D arrows 8-10% range, hunting about 10-12% and field 12-16%)
lower your FOC gets the more your groups will open at distance.