"KYAirgunner"First to adjust you have to know the trajectory of your projectile. There are also two different ways of measurement to adjust for the drop. One is called Milradians AKA Mil or Mil-dot. Then there is MOA Minute of angle. If you would like to learn how to adjust for shots you should first study these two kinds of adjustments then take it from there. Here are some videos explaining the two different angles.
Understanding Minute of Angle (MOA) - Long Range ...Understanding Mils (Milliradians) - Long Range Shooting ...Yes they are hard to understand at first but once you get the hang of it its not to bad. You can learn the drop of your air rifle by ballistic calculators like strelok. First you will have to have some information like scope height speed and other things but those are explained in numerous other videos.
I have seen those videos, but I was hoping for a more "convenient" method... : ) Now on to your second question why didn't they come up with this evolutionary scope in the first place. First that scope is designed for airguns. In long range shooting with firearms putting yardage tape on your turret isn't always going to be accurate. Temperature change and other things can affect your firearm bullet at long range. To compensate for this they have the turrets with the angle of measurements on them to be more precise. They can't just put a piece of tape on their turret and hope it works all the time. Since the scope is based for airguns they are not affected as much at say 100 yards. That means that the tape can be somewhat reliable and give you consistent hits if the tape is calibrated correctly. There is a disadvantage to it however, if your temperature changes drastically or you put the scope on a different rifle then you would have to change your tape every time. But once you have it set it will at least get you close. I hope this answers your question on why they didn't come out with that design sooner the Airgun community is growing and people are starting to take more notice in it, including scope manufacturers.
Copy that. Thanks for the detailed info... EDIT: I watched Ted's video again and I understand better now, what he is talking about, in regards to the new scope. Still, this to me should have been invented ONE week after the scope itself was invented!
I fly Drones. Not just the ones that come RTL (ready to fly), but the ones you have to completely build. When building a Drone, you take the props off every two seconds because when messing with the electronics, you don't want the damn thing to spool up on you and maul you, ha ha. Anyhow, it took me about three days of messing with my first Drone, to get really mad at having to screw and unscrew the damn props on and off. That is when I thought, "Why aren't there any quick release props?!" Fair enough, a year later they came out with them, and they are now pretty much standard on RTL Drones. That said. I am always shocked at how "lame" manufacturer actually are. Why does it take them so long before seeing the obvious? I mean, they work every day with that stuff, and someone should have thought of it. : ) 
My earlier post was more for someone just starting the air gun madness?