I'm curious what is the quality of optics you guys are using? Mine are badly damaged, and I don't notice a difference in the viewport, but I have a feeling it affects accuracy. I am hitting dead on at 300 yards with a bipod and proper zeroing. Once I hit 500 yards, it becomes very difficult and VERY random where the shots land. Typically a 7.62 round should be accurate up to 800 yards with proper optics.