What is the maximum straightness tolerance for arrows someone can expect to perform well at ranges exceeding 50 yards? By “well” I refer to the one inch per ten yards benchmark i.e. 40 yards = 4 inch group, 50 yards = 5 inch and 60 yards = 6 inch group. I know that straighter is better but I would think perhaps there is a point of diminishing returns when talking price and straightness. My second question refers to weight tolerances: What deviation in weight of completed arrow produces adverse groups at extended ranges? Obviously, a faster bow minimizes the effects of weight variances; however, the question stands. For the sake of this discussion let us assume a fired speed of 280 fps.
To be quite honest I think the tolerances are so tight it's almost negligable. At that range there's so many other variables that are greater, the straightness tolerance wouldn't make a difference. Assuming everything being perfect, and straightness was the only variable, even then I dont think there would be a difference. When the straightness is .005, .003, .002, I just can't see that having a great affect on the outcome. The weight is basically the same. When you're talking 2 grains, you can assume 0. Look at your equations of, mass is typically calculated using kilograms, 1 grain is .00006 kg. Obviously the slower the bow the more affect this will have. However if you put a 363 grain arrow next to a 365 grain arrow and shoot them, even with everything the same (assuming perfect and repeated flight), they'll hit in almost the same place. You can do all the math and find out that way. I have before and that's enough for me. Basically all your top arrows are so close in performance it's basically down to what you want. Their tolerances are just too close to tell any difference based upon that. I personally wouldn't spend a lot more on a set of arrows becuase their tolerance is .003 vs .001. There's just no way I would ever be able to tell with what I shoot for.
