http://www.swishercs.com/winchester/
Watch this video.
Best left to a gunsmith
Best to ask a gunsmith for help
Ask a gunsmith for help
marauder.homestead.com
My records indicate that your Winchester model 1897 was made by Winchester in 1901.
Your Winchester model 1897 shotgun was made by Winchester in 1927.
Your Winchester model 1897 shotgun was made by Winchester in 1942.
Your Winchester model 1897 was made by Winchester in 1955.
You will need the help of a gunsmith.
Highly recommend you ask a gunsmith for assistance.