Records from Russia or anywhere else are what they are. You can't change them. I have seen impossible dates, registered births a year before the birth, anything.
You have to work with the records that exist and be happy that you have them. My Polish ancestors come from Augustow, where there was a fire in City Hall at the turn of the 20th century. There are almost no records remaining, and I have to live with it. I would love to have records that are occasionally wrong.
Sally Bruckheimer
Princeton, NJ