Winchester Model 100 serial numbers by year
The Winchester Model 100 is a gas-operated, semi-automatic rifle produced from 1961 to 1973.
- Produced:
- 1961–1973
- Action:
- semi-automatic
What year was your Model 100 made?
Where the serial number is
Bottom front of the receiver; also seen on the side near the ejection port.
Where these dates come from
Winchester's original factory records do not cover every model. For the Model 100, the dates come from one published source, George Madis's published tables. It was typed up long after production, so treat any year as a close estimate rather than a factory record.
Source for this model: Published legacy Winchester customer-service year-end table (carried by Madis-derived compilations)
Winchester Model 100 serial numbers by year
The full Model 100 serial number chart, one table for each published source. Each row gives the serial numbers that source assigns to a year. Find the row your number falls in.
George Madis's published tables
From George Madis's Winchester books, a collector reference compiled decades after production. The figures are year-end estimates, not counts from the factory books.
Cited as: Published legacy Winchester customer-service year-end table (carried by Madis-derived compilations)
| Year | Serial numbers |
|---|---|
| 1961 | 1 – 32,189 |
| 1962 | 32,190 – 60,760 |
| 1963 | 60,761 – 78,863 |
| 1964 | 78,864 – 92,016 |
| 1965 | 92,017 – 135,388 |
| 1966 | 135,389 – 145,239 |
| 1967 | 145,240 – 209,498 |
| 1968 | 209,499 – 210,053 |
| 1969 | A210,054 – A210,999 |
| 1970 | A211,000 – A229,995 |
| 1971 | A229,996 – A242,999 |
| 1972 | A243,000 – A258,001 |
| 1973 | A258,002 – A262,833 |
- 1969: The table prints A210999 for 1969, but the source text says the A prefix began in 1970.
- 1973: The final entry, A262833, is the last serial number. It is not a count of guns made.
What to know about Model 100 serial numbers
- The A prefix began in 1970. Do not drop it when you use the published table for the years after 1969.
- The final entry, A262833, is the last serial number. It is not a count of guns made.
- No one has established a reliable barrel date-code system for the Model 100. Date the gun from the serial table and from documented features instead.
- The last serial number is not necessarily a count of guns made.
Other Winchester semi-automatic rifles
Winchester rifles that never had a serial number
These have no serial number to look up. Their pages explain why, and how to date one from its features.
No factory letter is available for the Model 100
The Cody Firearms Museum, which holds Winchester’s surviving factory records and issues factory letters, does not list the Model 100 among the models it can search. The published tables on this page are the best evidence available for dating one.
Which Winchester models can be lettered, and what a letter shows →