I am shooting ACC arrows 360/340 with 2 1/2" vanes. I don' t have any trouble hitting where I want out to 40 yards with fieldpoints. When I put on broadheads (slick trick) or mechanical heads, they don' t group or hit on target like the fieldpoints. Would 5" helical vanes help me? Can you put 5" helical vanes on a small arrow like ACC' s ?
Larger fletching will help and 5" will give you the most control. That said I think a good 4" fletch either helical of offset would provide plenty of control for your arrows, especially with the slick trick broadheads. I feel 4" is the minimum size needed to control most of todays smaller fixed blade heads.
Vanes and broadhead flight?
