Originally Posted by AK Hawg

OK, Kronan is a very experienced Hawg driver, and what he wrote was correct, but probably too much detail. Let's let an FTU IP take a hack at it:

A-10 gun is canted down approximately 2 degrees from the zero sight line (centerline of the jet). We have a computerized sight that will allow the pilot to accurately deliver bullets at almost any slant range, including well outside of their tactical effective range. i.e. the sight will tell you where they'll hit, even past the point where they've lost all of their kinetic energy.