GamePad joystick

Hey guys i have been trying to create a dual stick shooter with the xbox controller or any for that matter.

Now I have got movement working fine but rotation doesn't work how I would like, when turning using the right joystick it seems to snap to certain angles like from 90 to 0 to 45 etc.

I have done some googling and found most people have the same problem...

 using UnityEngine;
 
 using System.Collections;
 
  
 
 public class DualStickShooter : MonoBehaviour {
     public float PlayerRotationSpeed = 1.0f;
     public float PlayerSpeed = 100.0f;
     
     public Transform bullet;
     public GameObject orginalBullet;
 
     // Update is called once per frame
 
     void Update () {
        // This assigns a float to each joystic axis (left and right analogue stick)
        // which is used as the input. This result is multiplied by the PlayerSpeed
        // and real time.
        float axisHorizontal = Input.GetAxis("1Horizontal") * PlayerSpeed * Time.deltaTime;
        float axisVertical = Input.GetAxis("1Vertical") * PlayerSpeed * Time.deltaTime;
         
        float axisHorizontal2 = Input.GetAxis("1FireHorizontal") * PlayerSpeed * Time.deltaTime;     
        float axisVertical2 = Input.GetAxis("1FireVertical") * PlayerSpeed * Time.deltaTime;        
        float translateX = axisHorizontal * PlayerSpeed * Time.deltaTime;
        float translateY = axisVertical * PlayerSpeed * Time.deltaTime;
 
        // move the player towards the joystick direction
        transform.Translate(translateX, 0, translateY);
        // rotate the player towards the joystick direction
        transform.localRotation = Quaternion.Euler(0.0f,(Mathf.Atan2(axisHorizontal2, axisVertical2) * Mathf.Rad2Deg), 0.0f);
 
  
        // shoot with left upper-bumper.
        if (Input.GetKeyDown("joystick button 6"))
        {
 
          shootBullet();
 
        }
     }
 
     void shootBullet()
 
     {
 
        Transform shot = Instantiate(bullet, transform.position, transform.rotation) as Transform;
 
        Physics.IgnoreCollision(shot.collider, collider); //Ignore collision from bullet to shooter.
 
     }
 
     void OnCollisionEnter()
     {
         rigidbody.velocity = Vector3.zero;
     }
     void OnCollisionExit()
     {
         rigidbody.velocity = Vector3.zero;
     }
     
     void ShootDelay()
     {
         //canShoot = true;
     }
 }