Easton charts accuracy

[FrankM]

I'm curious. For a 2018 arrow at draw of 27", it says my recurve should only be up to 51 lbs. with a 100 gr. broadhead. But I see lots of guys posting how they use these arrows with heavier broadheads and shoot 55# or stronger bows. Are they pushing the envelope? Or is Easton just too conservative?

[Jeff Strubberg]

In my experience, the Easton charts are horribly overspined.  I've never gotten good arrow flight out of anything by following their guidelines.  

For me, a 2018 works well up to 55-60 pound bows, a 30 inch arrow length and a 29 inch draw.

[JRY309]

There are so many variables in traditional bows,usally the Easton charts are alittle stiff.Recurves cut past center,longbows cut off center,some cut to center,modern string materials,different draw lengths,point weight,so many variables.For me I don't use charts,I prefer to do my own bareshaft tuning to find out which arrow will work best for me.Charts can give you a starting point.

[Night Wing]

The Easton Chart today is way over spined. I use Stu Miller's free DSC program and it gives me a tunable aluminum arrow in about 10 minutes of time. After shooting an arrow for about 10 minutes, if slightly off, I tweak the point weight or brace height to give me a perfectly tuned arrow. I no longer use bare shaft tuning.

[Bill Carlsen]

Easton charts use a total different set of variables to determine the spine for compounds.....and I find that their "recurve" calculations to be about 2 sizes too stiff unless you are shooting EFOC heads. I  am comparing their variables with the old charts which were determined in the mid 30's and were in use and  understood by trad archers until the compound came out....then everything changed. Forums like this will get you closer to the correct spine than anything Easton has on their website..and I am not  disparaging them...I shoot Easton shafts but I also  have a spine tester so I can tune my shafts properly for my bows.