RE: ARROW NUMBERS
4560 represents the draw weight range they are intended for as it relates to spine. Most arrow makers number their arrows differently, but it all relates to spine. 4560 arrows, at least those made by Carbon Express, exhibit approximately a 400 spine rating, or .400" spine deflection.
Easton labels theirs with the spine rating, 500 being the weakest, 300 being the stiffest.
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1995 Ford Ranger XL
Douglas Radial Tires
Super Blue headlights
Fiberglass front bumper
2400 pounds
14,229,600 #'s of KE
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