My draw length is 27" and i shoot 65# and iwas given27 1/2 inch maxima carbon express arrows, but looking at there chart which tells you wether to buy the 250 or 350 arrows it says 27" arrows and 65 lbs you can use 250s but 28" and 65 lbs you use a 350, so 27 1/2 how do i know if the 250s are to light?

Also if my Draw length is 27" will 27" inch arrows be to small? if i can just get them than that will solve everything

Take your bow up when you get arrows....and they will cut them for you to your draw length. They will have you draw it and mark your arrows so they know your exact length. As far as weights, I would rather be safe than sorry.

A lot of times your arrows are an inch or two ShOrTer than the actual draw length. 27 inch arrows with 27 inch draw will be fine when it comes to length