I have a load for Nosler 140 gn AccuBond in a 6.5CM, with a 22” barrel. My load speed is 2734 MV, and it has a MOA of .364. Most Nosler people seem to use 1800 FPS as the minimum down range speed for the AccuBond to work effectively. If you use 1800 FPS as the minimum, I’m at 1834 fps at 600 yards, and 1768 fps at 650 yards. With my setup, I would not shoot at an animal past about 620 yards.