Thanks. I saw some of those threads via my google fu, and it is great info but doesn't answer my question, though I haven't read them all in depth.
Maybe I haven't explained my question good enough though.
I am wondering how parallax adjustments in a scope work, not necessarily how to adjust for it. I can read how to do that in the first thread in your link. It seems to me keeping your head aligned as precisely as possible through the scope would minimize parallax, so I am unsure why any kind of setting or adjustment to the scope is necessary.
I also see a lot of parallax adjustment discussions pertaining to rimfires at 50 or 100 yards....at that distance what does it really matter?
The adjustment moves a lens or lenses so the target image and reticle come into focus at the same place. That way you can't "look around the reticle" and see movement of the target.
