|The following is based on S.T.A.L.K.E.R.: Shadow of Chernobyl cut content and has not been confirmed by canon sources.|
Improved optics, and thanks to the change the resolution of the image is increased. The balance in the weapon is increased, and as a result the recoil is decreased.In-game description
The "Farshooter" SVDm-2 features are the enhanced scope zooming capability (2.67x), and the recoil decrease (−50%). However the variant also has less reliability than a standard SVDm-2.
The weapon was cut from the final version of Shadow of Chernobyl, but the weapon is still fully operational within the game's code, meaning one could spawn it with the help of modding.
This rifle is the target of a mission Steal the sniper rifle cut from Shadow of Chernobyl. Although it's not explicitly stated in the mission text file, its description (decreased recoil, better scope, ...) best fits this rifle.
Shadow of Chernobyl