OnCollisionEnter is slow...

Hello!

I have this script attached to my bullet object that is supposed to destroy it when touching a Collider, and Instantiate a particle.

The problem is that the bullet goes so fast, that the particle Instantiate not exactly the same time when the bullet collides, but a bit later, after the bullet has changed its direction from the hit, because the OnCollisionEnter function doesn't destroy the bullet on time...

 #pragma strict
 var DirtHit : GameObject;
 
 function Start () {
 rigidbody.AddRelativeForce (Vector3.forward * 1000);
 yield WaitForSeconds(3);
 Destroy(gameObject);
 }
 
 function OnCollisionEnter (other : Collision) {
 Destroy(gameObject);
 Instantiate(DirtHit, transform.position, transform.rotation);
 }

It has a cube collider, if this helps...