I went with a slightly heavier beman which is just out of my range according to their charts, but flies perfect. With a 125 grain head on a 29" Beman ICS 340 arrow, I am right over 450 grains. You could try a 125 grain tip and feathers to up your weight a little. You could at least get into the upper 400' s with that set up. Just make sure it fly' s well for your set up.