The sniper_rifle_mod_v1.0a.zip file you have requested: Call of Pripyat / Mods / Sniper Rifle Mod - 2.2mb is not available. Perhaps try browsing all files for the game S.T.A.L.K.E.R.: Call of Pripyat and upload any files you want to share or are missing. This is the only information we could locate:
Simple little mod that tweaks sniper rifles to make them more useful as a weapon rather than medium ranged pea shooters. You can reach out and touch someone with a harder hitting weapon. This is NOT a realism mod nor does it make the sniper rifle a god weapon, it is for fun and sniper fans.