2D 360 Shooting Is not working (Top Down, Shooting in all directions)

I am trying to make a top down in 2d and I have tried an unbelievable amount of scripts. Where I am now is a dot that is attached to the barrel but really far away. That dot is where I want the bullet to go and stop at that point. Everything works except for the actual moving of the bullet. Heres my code: using System.Collections; using System.Collections.Generic; using UnityEngine;

public class BulletsFiring : MonoBehaviour {

 public Rigidbody2D projectile;
 public Transform projectileSpawnPoint;
 public float projectileVelocity;
 public float timeBetweenShots;
 private float timeBetweenShotsCounter;
 private bool canShoot;
 public GameObject Target;

 // Use this for initialization
 void Start () {
     canShoot = false;
     timeBetweenShotsCounter = timeBetweenShots;
 }

 // Update is called once per frame
 void Update (){
     if (Input.GetMouseButtonDown(0) && canShoot)
     {
         Rigidbody2D bulletInstance = Instantiate(projectile, projectileSpawnPoint.position, Quaternion.Euler(new Vector3(0, 0, transform.localEulerAngles.z))) as Rigidbody2D;
         projectile.transform.position = Vector3.MoveTowards (transform.position, Target.transform.position, projectileVelocity);
         canShoot = false;


     }
     if (!canShoot)
     {
         timeBetweenShotsCounter -= Time.deltaTime;
         if(timeBetweenShotsCounter <= 0)
         {
             canShoot = true;
             timeBetweenShotsCounter = timeBetweenShots;
         }
     }
 }

}