In the missile design window, the four default speeds against which the "% chance to hit" is shown (1, 3, 5 and 10k km/s) are never relevant for AMMs and become irrelevant for fighters quickly and for ships by mid to late game tech.
Instead, show the speeds at which you have 25%, 50%, 75%, and 100% chance to hit. That way the info is guaranteed to always be relevant regardless of what tech level you're at.