Arrow Spine Calculator Easton
Arrow Spine Calculator Easton . All major arrow manufacturers list how much each of their different raw arrow shafts weighs in grains per inch. This will save you the job of trying to find all these size charts from. Easton ACE Arrows, History, Spines, Points and Nocks from www.archeryblog.co.uk For recurve/compound bows only currently available for easton arrows. You are 100% confident an existing bow and arrow setup is consistently on target from group tuning, but when using this calculator to confirm your setup, the bow and arrow results have a variance of greater than 2 lbs. For fractional arrow lengths, round up or down to the closest column.