Highlander, on 07 April 2012 - 06:03 AM, said:
"Popular Arrow sizes (3 arrow average) all 22" arrows
ALL "weight" is arrow weight, does not include the tip weight.
I did this just so people have some idea as to what size nocks or inserts they may need to look for if they are thinking of changing out any of them (providing they are using
one of the below mentioned arrows). I know I've spend enough buying inserts and nocks, only to find out they don't fit, or are to small. hopefully this helps somebody. if
anybody else has any dinsions to other arrrow, or brands, please post them below.all measurments are +/- .003"
Good info. Thanks.
Keep in mind when you are shooting groups with more than one arrow of the same type, the spine and straightness of each arrow can come into play as well as other factors besides the FOC. So the size of groups is not necessarily due to the FOC.

agree there.. I also looked at the arrow pattern when shooting the groups, not sure if it mattered, but I was also looking to see which arrows had the straightest impact, didnt like the groups that had arrows with all sorts of crazy impact directions.. meaning if i looked at the group, and one arrow was tilted to the left, another to the right, and the 3rd pointing upward.. I did 3 sets of each arrow just to make sure becasue I know some arrows will kick if they hit a softer spot in the target, as the arrow pretty much follows the path of least resistance once it enters the target. the spyderweb target helps eliminate alot of it, but not all.