Can someone tell me my FOC Mathews No Cam HTX 70 lbs Black eagle rampages 300 spine 8.7 grains per inch cut either at 26.5 inches or 26.75 cant remember 125 grain head 3 2 inch blazer vanes regular knock-10 grains 56 grain insert
https://www.goldtip.com/Resources/Calculators/FOC-Calculator.aspx Sent from my SAMSUNG-SM-G920A using Bowhunting.com Forums mobile app
Using components will get you close. If you want an accurate %: Measure the shaft length. Measure the nock end to balance point (with BH attached). Do the math or use on online calculator.