I'm just an armchair nerd, no expert, so I welcome corrections. Going only by Wikipedia, it's a fragmentation warhead probably designed to explode in proximity

I'm just an armchair nerd, no expert, so I welcome corrections. Going only by Wikipedia, it's a fragmentation warhead probably designed to explode in proximity to the target. https://en.m.wikipedia.org/wiki/Pantsir_missile_system https://en.m.wikipedia.org/wiki/Pantsir_missile_system 20kg of explosive is a lot of hurt. But, depending on where the missile is in relation to the plane, only a small amount of that kinetic force may be transferred to the target. At best, 50% if it's directly beside the target? And at some point it's just kind of a dice roll whether those fragments hit anything vital, sever fuel and hydraulics, etc. From a military standpoint an air to air missile really only needs to damage a target. Any damage at all is going to remove a target from the fight and that airframe will not fly again for a long time if ever. I will stress again my lack of anything other than armchair knowledge!