Multiple Projectiles/Targets...hitTest

Hey guys…I’m having problems with killing multiple enemies (collisions).
Basically my ship fires fine and all but I’m only able to kill one enemy with one projectile at a time being on the stage. If I fire more than one shot or hold the mouse down, the hits no longer register. I have a feeling it has to do with my onEnterFrame function being called INSIDE the function which creates and fires the projectile but I don’t see how else to do it…or it could be a problem with me using a setInterval onMouseDown.

Try single clicking slowly and holding the mouse down.
Anyways, here’s the FLA…any help is appreciated. Thanks