Here is an interesting one for all the technical guys out there.
I have two sets of arrows, one set bought and cut to my length, and one aquired along with a recent bow trade.
Both are 340 n-fused Epics. similarly fletched ( sorry no FOB's YET).
Bow is set on 60#.
Set 1 : Length = 31.29 " with 125 gr field points . Total arrow weight = 475 gr
Set 2 : Length = 33" with 100 gr field points. Total arrow weight = 479 gr
Almost no appereciable difference in weights.
NOW COMES THE MYSTERY -- at least to me.
Chronograph readings taken 6 feet in front of bow.
Set 1 : Avg speeds of 3 arrows = 235 fps.
Set 2 : Avg speed of 3 arrows = 248 fps.
How come ??
Should set # 1, the shorter, lighter arrows not have given the fastest readings ? .
Any thoughts on this one would be welcome.