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1816, 1916, 2216, 2219... what do these arrow numbers mean?

2K views 2 replies 3 participants last post by  dcw 
#1 ·
As I read folks posts about arrows, these sorts of numbers come up... the also come up on the Easton page, etc.

Can anyone point me to an explanation?

I must be ancient. I think of an arrow rating and inches of deflection caused by 2 lbs. on the center 26" of the shaft...
 
#2 ·
Shaft diameter and wall thickness. Spine is made less flex by increasing either or both. I suspect a real good full explanation would be on the Easton website.

As best as I recall the first is shaft diameter but am not sure what unit of measure is. Second number is I believe the thickness of the walls in thousands of an inch.
 
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