I shoot Cx 250 maximas on my No Cam at 60# and it shoots like a bullet, I try them on my Vertix at same weight and get a fishtail, go to 340 and it straightens out. What's the difference - the bows. I am guessing at 70 # you will have to shoot the 350 or you are going to get some crazy flight. Some of the guys on here are far more knowledgeable than I am, but that has been my experience changing spine.

 

250 is stiffer than 350. They will tune just fine. But........ you will need to have cleaner shot execution and good form to have good clean arrow flight.

Personally I wouldn’t get them because they’re a good deal.


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I could be wrong, but I believe CE goes the opposite way with the numbers . . . The lower the number the weaker the spine. But most others (like Easton) do it the opposite . . . The lower the number the stiffer the spine.


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Carbon express 250 maximas are a .417 spine and 350’s are a .349 spine so 250’s are a weaker spine in that arrow. So the 250’s are to weak for a 70# bow unless you use a lighter point or cut them shorter than 28” c2c. Through paper your 250’s should tear nock left off your 70# bow showing a weak spine.


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They would be too weak for your set up. Carbon Express arrows go the other way. 250 is equal to most 400's, the 350 is equal to most 340's.

 

I pull 70lbs 28" DL and shoot 350 spine carbon express. I saw a good deal for 250 spine arrows, would there be any negative issues besides weight do to different GPI? Thanks

They would be too weak for your set up. Carbon Express arrows go the other way. 250 is equal to most 400's, the 350 is equal to most 340's.

Glad to see your finally catching on about how CX numbers work. For years you have answered CX arrow questions negatively and with wrong information. Maybe that's why you had something against them, you were always way underspined???

 

Glad to see your finally catching on about how CX numbers work. For years you have answered CX arrow questions negatively and with wrong information. Maybe that's why you had something against them, you were always way underspined???

So Dale makes a correct post with correct information and you are still on here harrassing people?

 

Wow, great info everyone. Thanks!!! I didn't know about CX was reverse in spine comparing to other companies. That would explain why the arrow at 250 has a lower gpi then my 350....same model arrows. Again thanks.!!!