Reflecting lasers on a mirror with a collider?

I am a beginner in Unity. So I have implemented the following script with the help of some tutorials to create a laser using line renderer and raycasting. The laser comes in fine but the reflection is confusing and is happening but the direction that it takes I cant understand. If someone could help it shall be great!!

I have the following questions-

1. Does this code look correct for my required application?

2. The reflections I am getting are pretty random and are not along the surface normals. Could there be something during modelling that could be causing this incorrect surface reflections?

3. Using LaserLine.SetPosition (NumOfVert, pos); after the second vector onwards reduces the width of my laser, what could be the reason for this? But if i dont use that the laser still reflects but i dont know in what direction and based on what criteria, BUT its width remains

              using UnityEngine;
        using System;
        using System.Collections;
   
        public class LaserTip_LaserScript : MonoBehaviour 
        {
            int NumOfVert;
            LineRenderer LaserLine;
            Light FlareLight;
            Ray LaserRay;
            float LaserWidth= 0.05f;
   
        
   
            void Start () 
            {
                LaserLine = gameObject.GetComponent<LineRenderer> ();
                LaserLine.enabled = false;
   
                FlareLight= gameObject.GetComponent<Light> ();
                FlareLight.enabled = false;
   
            }
            
            // Update is called once per frame
            void Update () 
            {
   
                if( Input.GetButtonDown("Fire1") )
                {
                    LaserLine.SetWidth (LaserWidth, LaserWidth);
                    NumOfVert = 1;
                    LaserRay=    new Ray( transform.position, transform.forward);
   
                    StopCoroutine("FireLaser");
                    StartCoroutine("FireLaser");
                }
            }
   
            IEnumerator FireLaser()
            {
                LaserLine.enabled=         true;
                FlareLight.enabled =     true;
   
                LaserLine.SetPosition(0, LaserRay.origin);
   
                while( Input.GetButton("Fire1")){
                    RaycastHit LaserRayHit;
                    if (Physics.Raycast (LaserRay, out LaserRayHit, 1000)) {
                        LaserLine.SetPosition (NumOfVert, LaserRayHit.point);
                        NumOfVert++;
                        print (NumOfVert);
                                                while(LaserRayHit.collider.tag == "MirrorCollider")
                        {
                            //Debug.DrawRay(LaserRayHit.point, LaserRayHit.normal * 10, Color.green);
                            LaserLine.SetVertexCount (NumOfVert);
                            NumOfVert++;
                            Vector3 pos = Vector3.Reflect (LaserRay.direction, LaserRayHit.normal);
                            LaserLine.SetPosition (NumOfVert, pos);
                            LaserRay= new Ray( LaserRayHit.point, LaserRayHit.normal);
                            Physics.Raycast (LaserRay, out LaserRayHit, 1000);
                        }
   
                        //}
                    }
                    NumOfVert = 1;
                    yield return null;
                }
                                LaserLine.enabled= false;
                FlareLight.enabled = false;
            }
   
            }