Your shotgun was made for Montgomery Wards by Savage/Stevens, and is also THEIR Model SB-100. Unfortunately, there the trail goes cold. Savage only has records going back to the last time they were sold- in 1995. The fact that it has a serial number would place it between 1968 and 1995. (SNs not required by law on shotguns until 1968) Sorry.
it is a Mossberg
Depends on which model/manufacturer.
Mossberg and sons is the manufacturer of your western field model M550ABD,shotgun.The Mossberg model 500 is the same shotgun.
That depends on the manufacturer. Different brands can have different lengths of serial numbers.
Give more info (model number) and ask again.
Mossberg, it is their M#85 ( I'm assuming that this is a bolt action shotgun).
That is impossible to determine without knowing the manufacturer and model of the shotgun.
I dont show that in my cross-reference. If you can send a digital picture, we can ID it for you. repair@countrygunsmith.net
It's a Stevens 620.
Trade name used by Western Auto Stores. Proofhouse.com has a cross check list.
Your western auto model 312AA shotgun was made by mossberg for western auto.The mossberg model 395,395K are the mossberg model designations for your shotgun.
mossberg