projectile move still the same direction

the Gun Need to be changed 45 - 80 so the handling of the pad is much better but the bullet come still in the same direction out i try mani Things but i cant find out what i Need to change exactly m just 3 weeks in Unity Need some Help

Thanks

using System.Collections; using System.Collections.Generic; using UnityEngine;

 public class Shooter : MonoBehaviour {
 
     public Transform crosshair;
     public GameObject projectille;
     private SteamVR_TrackedController controller;
 
 
     // Use this for initialization
     void Start () {
         controller = GetComponent<SteamVR_TrackedController>();
         controller.TriggerClicked += Shoot;
     }
     
     void Shoot(object sender, ClickedEventArgs e) {
         if (projectille) {
 
             GameObject newProjectille = Instantiate (projectille, crosshair.gameObject.transform.position, transform.rotation)as GameObject;
            
 
             newProjectille.GetComponent<Rigidbody>().AddForce(transform.forward * 20f, ForceMode.VelocityChange);
         }
     }
 }