Performance of bows

FD curves and arrow speed. Arrow velocity will be measured in standard 10 GPP 28″  ( 10 grain of arrow mass on each pound of  bow draw weight on 28 inch draw length )  and maximum peformance of bow – minimum safe arrow mass combined with max allowed draw length .

Draw length and draw weight of bows measured from back of arrow pass or shelf .

Chrono measurments

       We use shooting machine with mechanical release . Each bow will be measured with precise arrow mass/draw weight/draw length ratio .

                8 shoots  – 2 best and 2 worst are canceled . Average speed of bows we get from 4 middle results