Trying to give instantiated object a value

So I want to instantiate an object (bullet) that will blow up at where it was clicked (flak cannon).

This is what I use for Instantiate

 Instantiate(bulletPrefab, firePointOne.position, firePointOne.rotation)

This is a function for getting mouse position (located in update)

 //mouse position to trigger bullet
             Vector3 mousePosition = Input.mousePosition;
             mousePosition = Camera.main.ScreenToWorldPoint(mousePosition);

and inside the bullet's script would be this variable that needs to receive the value

 public Vector3 blowCation;

Then I just need to have it blow up on that position, but I can do that myself, I just need to get the position for the bullet.