Archery Calculators Dec 26, 2007 21:43:32 GMT -4 Quote Select PostDeselect PostLink to PostBack to Top Post by asinglearrow on Dec 26, 2007 21:43:32 GMT -4 Here are some cool calculators.FOC- Front of Center arrow calculatorwww.odproshops.com/foccalculator.htmKinetic Energy Calculatorwww.odproshops.com/Kecalculator.htmLet-Off Calculatorwww.odproshops.com/letoffcalculator.htm