Arrows have far easily measured tolerances- it is pretty simple to do testing and see which arrows will have the potential best accuracy, not so much with bows once they are put in someone's hands. They are very different.

Easton A/C technology are the most consistent on the market for measured tolerances. whether it's target or hunting shafts. CX Maxima Selects and any of the Carbon Tech line (at least when they were Made in the USA) are close runners up.