Raycast Shotgun

Hello, I’m quite new to Unity and have just finished the Survival Shooter tutorial, and was wondering whether it’s possible to code the assault rifle into a shotgun spread Raycast, a circular one, this is the shooter part of the script, I have been trying but sadly have no succeeded, thank you if you can help!

void Shoot ()
    timer = 0f;

    gunAudio.Play ();

    gunLight.enabled = true;

    gunParticles.Stop ();
    gunParticles.Play ();

    gunLine.enabled = true;
    gunLine.SetPosition (0, transform.position);

    shootRay.origin = transform.position;
    shootRay.direction = transform.forward;

    if(Physics.Raycast (shootRay, out shootHit, range, shootableMask))
        EnemyHealth enemyHealth = shootHit.collider.GetComponent <EnemyHealth> ();
        if(enemyHealth != null)
            enemyHealth.TakeDamage (damagePerShot, shootHit.point);
        gunLine.SetPosition (1, shootHit.point);
        gunLine.SetPosition (1, shootRay.origin + shootRay.direction * range);

Thank you for any help you can offer!

One thing that you could to is code multiple raycasts in a angled directions. Or, you could to prefab shooting but that will exponentially drop the FPS. This forum thread also might help.