Simple fix, they just need to put maxZeroing to a lower level, so if you put SOS on this rifle it will only zero 200 m or whatever. The round is subsonic.
Quote @oomwar: "the chevrons on the scope used by the thread cutter has dramatically larger bullet drop compensation due to sub-sonic flight characteristics"
That's only in ARMA 2. The real VSS scope does not have those bullet drop compensation chevrons like the SVD. It only has the center chevron. Instead it has very precise "zeroing" (many small range graduations on elevation turret)
Edit: here is how the real VSS reticle appears: http://i.imgur.com/sjsTOFj.png