[Kone]

True. Nothing prevents launching the missile as soon as target appears in the optics. So detection range would be the choise. Detection range itself varies somewhat according to circumstances but as the range tends to be stated as "up to" it would well do as max range.

The IFF point in mind someone might want to use the identification range though, since friendly fire is not allowed.

The reason why I took this up, is because the missile ranges appear as the projectile's max ranges. And there's a lot of speculation out there considering the sights' performances.

Well... Guess I'm just another sceptical bonehead...