This guy was talking about 600 yard shots. As much as you guys want to make it seem like the most completed thing in the world. Even under extreme changes it would change 3". While some might argue this is unacceptable this is well withing the kill zone of a deer or elk. Honestly he doesn't even need the corrected yardage or all the other stuff. If he just ranged and shot the yardage he would kill the animal provided is rifle was under 1 moa to begin with.
While I agree with you guys and also shoot using moa turrets and ballistic program. and also agree that over 600 yards to however far you want to shoot that using this system is much more accurate. However he said 600 yards and yardage turrets. The lieca 1600 is the best rangefinder for that money or bang for the buck. So even if he doesn't use a ballistic curve and just uses straight range finder paired with his turret He will be fine. To the op get your rangefinder and go shooting to verify your data and get confident that your system is working. After that's taken care of you can get that deer of a lifetime. If you find yourself wanting more Just put the moa turret back on and get an ballistic program, your rangefinder is up to tge task to grow with you.