Screenshots that demonstrate the problem:
http://i.imgur.com/bd8vwHN.jpg (My own far shadow occludes reflection in the sights)
http://i.imgur.com/bC2JygU.jpg (Shadows in the cockpit occluding the reflection in the glass)
http://i.imgur.com/9rp0tYq.jpg (Sign shadow occludes reflection in the sights)
http://i.imgur.com/CeMGPY3.jpg (Tree shadow occludes reflection in the top sights)
Build 0.71.106951