Oryol Governorate
Kamozin was born on in Bezhitsa in Oryol Governorate to a working-class Russian family. In 1931 he graduated from sixth grade and entered a trade school. He worked as a mechanic at the Red Profintern factory. In 1934 Kamozin began to study at the flying club. He was drafted into the Red Army in 1937. He was sent to the Borisoglebsk Pilots Military Aviation School, from which he graduated in 1938.