Thread: What the hell?

Out on the range this afternoon zeroing for he roar with the Magnus 2.4-16x56 .

First couple of long range shots went really well. Changed positon 180* shot again, all good. Let the barrel cool for 3-4 mins had look through the scope an noticed it wasn't clear.
A flare appeared near the reticle clouding the image.
Then I saw this ?
20C, slightly overcast, scope has been in its Leica neoprene protector.