I play with texture quality on "very high" because I like my LRPS's visual quality to be sharp whilst sniping. But I've noticed a few times recently that the scope's reticule/mildots will go blurry (as if I'm playing with texture quality set to normal) whilst playing without me changing any settings.
~~The last time this happened, while playing KOTH, was after I swapped my M320+LRPS for a dead sniper's identical M320+LRPS (he killed me and took my weapon so I know it was the same) so I could take the loaded ammo. Like I say, the next time I used the scope it was as if the texture quality was set to "normal". I checked my graphics setting in the options and texture quality was still set to "very high".~~
The last time this happened was today. I joined a KOTH server, set up in my sniping spot and the scope was blurry from the very start. I also noticed that relatively nearby tree and plant textures were also low quality. I checked my graphic settings and textures were already on "very high".