Lifetime ends? Not quite... I have noticed a chain reaction explosion... one hits, and then the rest detonate in sequence away from the target...
If you were right about this, then it all depends on the way the enemy fighter went... left ends in fraticide-like behavior, and right ends in a uniform explosion...
Well the problem I see with this is the fact that swarm missiles last
longer then most of us think they would.
I've launched against a target 300 meters away that banks left. The missiles travel about 500 meters before the catch up, ending in a chain explosion from left to right...
Other tests have concluded Fraticide is still what makes the explosions... I've launched anywhere from 100 to 800 meters away from my target, and notice that even the slower bombers at distance cause the same fraticide as fighters at distance.
I conclude that each missile either collides or is detonated by a nearby explosion...
I think i've seen some in-flight collisions with other missiles when I went AWAL in a extrememly maneuverable fighter... I was looking back and banking hard right, and I think I saw some of the missiles destroyed while others survived.