I normally don’t post about stuff I’ve covered in the newbie guide, but this is easy to misunderstand so its worth repeating. All weapons become more accurate the closer they are to the target.
There is one exception. When shooting at a plane, accuracy stays constant, we gain no accuracy bonus from range. This is only about the target:
-a plane shooting AGMs at a tank benefits from range scaling
-an AA piece shooting at helos benefits too
-AA shooting at a plane does not benefit
-ASF shooting at other planes does not benefit