The weapons seen in this movie are:
Full-length, Mosin Nagant M91/30 - 7.62x54R. This is a more recent variant than would have been used in the film. Not True It was a Finnish M28 that the movie was made with. It was made during the cold war and Mosins were very hard to get at the time.
Maxim 1910 with wheel mount
Nagant M1895 Revolver
Nagant M1895 Revolver - 7.62x38N cartridge (aka 7.62 Nagant ammo). This example was dated 1939 manufacture and was a War time Issued weapon.