I'd imagine many scale vary from scale to scale. BG has Blazers at 5.5 grains, my digital has them at 6, 3 for 18.



The new Fusion from Duravanes weigh in at 8 grains however, 3 weigh in at 22 grains.





Like BGF said, it really depends on what arrow, what insert, what nock, what fletch you are truly interested in. The same 2" Vanetec weighs in at less than the previous two forementioned vanes.