He began fighting in the war as soon as Nazi Germany invaded the Soviet Union, but it was not until later in the war that he became a sniper. He excelled as a sniper and became a sniper instructor. By May 1944 he killed 301 enemy soldiers, for which he was awarded the title Hero of the Soviet Union on 15 June that year. By the end of the war he killed 328 Germans, and in the course of the war he was wounded six times.