Many of the WW2 movies show German soldiers using WW1 Mauser rifles, and wearing the WW1 style helmets. Also, they show Japs using the WW1 Mausers.
the 91/30 is a wwi straight pull, made in hungary and in vienna. the 30 comes from their being cut down from the wwi version used by the austro hungarian empire, and issued to second line troops, police, etc.
as to the mauser, i asked a guy once served in russia, he said they preferred the wwi mauser to the k98 , said it was more accurate.
