Let's Try Shooting With Raycasts test from Unity converted to VR - work in progress

I followed the Let's Try Shooting With Raycasts in Unity tutorial, and amended a few things: I converted it so it can be viewed in a Google Cardboard VR headset, and the reticle / viewfinder is now at the correct angle to all surfaces. I used the Standard Assets pack provided free by Unity: https://www.assetstore.unity3d.com/en/#!/content/32351 and the Let's Try Assets pack also provided free by Unity: https://www.assetstore.unity3d.com/en/#!/content/66207 the GoogleVR SDK (version 5.2) for the reticle: https://developers.google.com/vr/unity/ and this Unity tutorial: https://unity3d.com/learn/tutorials/lets-try/shooting-with-raycasts?playlist=41639 It is work in progress because I also want to add game scoring and a menu.