an adjustable rear notch sight The Dragunov sniper rifle (formally Russian : Снайперская винтовка Драгунова, Snayperskaya Vintovka Dragunova (SVD), literally "Dragunov's sniper rifle") is a semi-automatic sniper rifle chambered in 7.62x54mmR and developed in the Soviet Union . It was selected as the winner of a contest that included three competing