I have a nice Finnish 91/30. As I was cleaning off the cosmoline, I noticed that the rifling grooves of the barrel seemed rather pronounced compared to my Russian 91/30. Are these barrels Russian or Finnish? The rifle has the Soviet hammer and sickle with wreath near the rear sight, is stamped 1942, and it is stamped SA on the left side of the receiver near the wood of the stock. Thanks in advance.