ORIGINAL: mauser06
wrong! 200 is not weight!!
figure out the GPI of your shafts (grains per inch) could be on the shaft or found online...
multiply the GPI by the shaft legnth(in inches) measure your arrow with a tape measure from insert to groove of nock.
then add in fletching weight, point weight, insert weight, and nock weight and that will give your your finished arrow weight.
so long as you are above 5 grains per pound of draw weight (IE 350gr arrow for a 70lb draw weight) you are FINE so long as they are spined properly.....
Ditto!