Arrow Spine chart differences between brands

gibby97

FNG
Joined
Jan 14, 2020
Messages
80
Why does one brand require a 350 spine arrow when another requires a 300 spine arrow for the exact same setup? In particular Caron Express Maxima seems to be around the 350 mark for my setup while Gold Tips are 300 spine.
 
For all brands I'm aware of except for Carbon Express, an arrow's model number is equal to its static spine deflection measured in inches times 1,000. For example, a Gold Tip Hunter 300 has a static spine deflection value of 0.300". Carbon Express's model numbers don't directly correlate to actual spine deflection, and their numbering system is effectively opposite of all other manufacturers: higher model numbers for stiffer (lower spine deflection) arrows and lower model numbers for weaker (higher spine deflection) arrows.
 
I think a Maxima hunter 350 is actually around a 330 spine. A 450 is about 298. When I shot them they were consistent, but labeled different. So, a 350 Maxima hunter should actually be a little stiffer than a 340 gold tip.
 
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