Remington.com
You need to go to a gunsmith
Tough question, the Remington model 550 is a .22 rifle not a 12 gauge shotgun.
The Remington 550 was made from 1940 to 1946, the 550-1 was made from 1946 to 1970, the 550 had 2 ejecting mechanisms, the 550-1 had 1 floating mechanism allowing it to shoot, shorts, longs, and long rifle shells.
Remington Model 550-1 does not have serial numbers.
serial number on 550-1 remington 22 rifle
was manufactured? All 550's are date code stamped on the barrel. Check related links for information on the Remington Society of America.
Go to Remington's web site and request a manual.
The Remington was first made im 1946
1945
41-70
The Remington Model 550, in various forms, was made from 1946 until 1970. A very few were made in 1941 before WWII broke out.