This is one of the QUICK SPIN bolt's I made up , it's a cut down xx75 2216, cut to 20" . With a 100gr. point,insert's and vane's it weigh's in at 440 gr's. , note the 2.5 degree offset of the vane's. These do fly nice ,I will be doing some chronoing next week and will post speeds and results, GREYWOLF
Just started testing with these myself. So far I thinking that these vanes would work best on bolts with higher F.O.C's. But time will tell..............