These were made between 1936-1942.
All my records indicate that stevens did not make a model 337 shotgun.If your stevens shotgun is marked U337 under the receiver,this would be a serial number,not a model number.
1947 - 1953
yes
These shotguns were made from 1926-1945.Stevens did not keep records as to the year of production by serial numbers.
Most likely Stevens they did make a model #5100
The stevens model 107B was made during the years 1912-1945,with a total production of 443,500 guns made during that time.I am afraid that is the best that I can do for you.
The Western Field model 30 pump action shotgun and the Stevens model 520 shotgun are one and the same firearm.Savage/Stevens made these for Montgomery Wards.The shotgun in question should show that it was chambered for the 12 gauge shotshell.The length of these shotgun shells were 2 3/4in. If your shotgun is not marked,I would have a gunsmith make a quick check of the chambering for you.This will only take a couple of minutes to do.
being that your savage/stevens shotgun was made between 1933-1945,I would have a gunsmith check your shotgun to make sure it is safe to use and at that time question him on use of steel shot through your shotgun.
try www.gunparts.com or a gun smith could make you one
Contact Stevens Customer Service through their website
A long time ago. So long ago that no one knows.
Winchester did not make a model 96 shotgun,they did make a model 97 shotgun however.