Missile Colission

I made a missile that spawns out of the front of a flying pawn from the default Flyer template. The missile is supposed to explode when it hits anything (static meshes, landscape, players) but it does not. The only time the missile ever blows up is if I move too fast and spawn it inside myself. I have no idea what the problem is. The missile blows up (is supposed to) by use of a on component hit. If anyone can help please do.