I was talking with the guy at the bow shop about which size arrow I should shoot with my new bow. He said if I shoot Carbon Express arrows to shoot their 250 grain arrow and if I shoot Easton, to shoot their 400 grain arrow. Didn't matter which specific model. My new bow is an PSE Axe 6 set at about 61-62 lbs and a DL at 28 inches. What do yall say and why? The reason I ask why is so I can learn the reasoning for all these combinations for arrows, DL, draw weight, etc. Thanks
The numbers (250 and 400) don't refer to weight, they refer to spine. CX uses mainly 250 and 350 and Easton uses 340 and 400. You can find charts online at the manufacturers websites or sites like Cabelas and other retail stores. Keep in mind the spine selection has less to do with draw length than it does with arrow length. I have a 29" draw length, but my arrows are only 28 1/4" long. Some people like to have an inch or two of shaft sticking out past the riser. With Easton, at 28", you would want 400 and at 29" you would want 340. The 340 has a stiffer spine. The CX chart says you can shoot 250 up to 29", any longer and you'd want 350. The stiffer spine handles higher weight and longer shafts better. There are computer programs that can really break it down, but these are the basic charts. I've always went to the stiffer spine if I'm right on the edge and had good results, but I'm not a professional shooter, either. I hope this helps.
the spine has all to do witht he draw weight and lenght of your bow and also tip weight will weaken spine so take all the into consideration before picking an arrow
Easton uses the actual spine deflection of the shaft in .001" of deflection so a 340 Easton shaft deflects .340" and the weaker 400 deflects .400". CX uses a code that has no bearing on the actual deflection of the shaft. Their 250 shaft is weaker than their 350 shaft... This is a pet peeve of mine; I hate that they can't make things standardized and simple like Easton does. (CX isn't alone in this.) In short, it sounds like the guy gave you accurate advice. The CX 250 and the Easton 400 have similar spine ratings.
