GunSerials

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
AI-generated illustration of Winchester Model 100, side profile on a light gray background.
Winchester Model 100. AI-generated illustration. Details may differ from a real gun.
New to gun terms? Start here
Model:
The name of the gun design, such as Model 94. A model name that looks like a year does not tell you when your gun was made.
Serial number:
The number stamped on an individual gun. Include letters that are part of the number. A separate letter stamped above it, like the Model 97's C, D or E, is a different marking.
Receiver:
The main metal body just behind the barrel. The receiver ring is its front section, where the barrel joins it.
Tang:
A strip of metal extending from the receiver into the stock. The lower tang runs underneath, behind the trigger.
Stock:
The part you hold against your shoulder, usually made of wood on older Winchesters.
Forearm or forend:
The part under the barrel where your forward hand holds the gun.
Action:
The mechanism that loads and removes cartridges. Names such as lever action, pump action, and bolt action describe how it works.
Caliber or gauge:
The ammunition size or type a gun is designed to use. This marking is different from the model and serial number.
Takedown:
A version designed to separate into major sections for storage. A takedown joint is where those sections meet.
Proof mark:
A factory testing mark, such as Winchester's oval WP stamp. It is not a serial number or a date code.
Peep or aperture sight:
A rear sight with a small hole to look through. A hooded front sight has a cover around it.

What year was your Model 100 made?

Need help finding the serial number?

Look up a serial number and print a one-page record sheet: the date and its sources, the status by age, the model in brief, and the auction price range.

Enter the number stamped on the gun, including any letters. The model name and patent dates are different markings.

Winchester Model 100 value: what it sells for at auction

Enter your serial number above to highlight the price categories that fit the estimated date and see recent sales of this model in those categories.

These prices come from 51 Winchester Model 100s sold individually at Rock Island Auction Company (1), Morphy Auctions (15), Poulin Auctions (15), Redding Auction Services (8), and Amoskeag Auction Company (12) between Sep 2023 and Sep 2026. The age-group rows use the auction companies' categories: antique, curio and relic, or modern.

The typical price is the middle price, also called the median. Half sold for more and half for less. The middle 50% range leaves out the lowest quarter and highest quarter of prices. The wider 80% range leaves out the lowest tenth and highest tenth.

We leave out listings described as deluxe, special-order, engraved, restored, or commemorative, and other exceptions in the value guide. Commemoratives are priced on their own page. Wear, repairs, original parts, and factory upgrades can make a particular gun worth more or less. These figures are a comparison, not an appraisal of your gun.

Curio & Reliccollector category, usually 50+ years old51$670 – $964$793$598 – $1,230

Recent Model 100 auction sales

Sales near the typical price and the newest. Their features and condition may differ from your gun. A lot number identifies an item in an auction.

Aug 2026Model 100Poulin lot 3010$793
May 2026Model 100Poulin lot 2015$793
Nov 2025Model 100Amoskeag lot 2059$786
Aug 2026Model 100Amoskeag lot 2633$574
Aug 2026Model 100Amoskeag lot 2621$453

Prices are in US dollars and include the buyer’s premium, the auction company’s fee added to the winning bid, where the house charges one; Redding charges none. They are not the amount the seller receives. A dealer’s offer or private sale price may differ. The full picture, model by model →

Where the serial number is

Bottom front of the receiver; also seen on the side near the ejection port.

Where these dates come from

The table on this page comes from one source: George Madis's published tables. Use its dates as estimates for groups of serial numbers, and check the notes for its limits.

Source for this model: Published legacy Winchester customer-service year-end table (carried by Madis-derived compilations)

Who was Madis? What does Cody hold? About these records →

Winchester Model 100 serial numbers by year

The full Model 100 serial number chart, one table for each source available here. Each row gives the numbers that source assigns to a year. Both the first and last numbers are included.

George Madis's published tables

George Madis compiled Winchester reference books years after production. His tables estimate the last serial number reached each year.

Cited as: Published legacy Winchester customer-service year-end table (carried by Madis-derived compilations)

YearSerial numbers
19611 – 32,189
196232,190 – 60,760
196360,761 – 78,863
196478,864 – 92,016
196592,017 – 135,388
1966135,389 – 145,239
1967145,240 – 209,498
1968209,499 – 210,053
1969A210,054 – A210,999
1970A211,000 – A229,995
1971A229,996 – A242,999
1972A243,000 – A258,001
1973A258,002 – A262,833
  • 1969: The table prints A210999 for 1969, but the source text says the A prefix began in 1970.
  • 1973: A262833 is the last number in Winchester's own list. It is not a count of guns made. George Madis records 337 more guns made in 1974.

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.
  • A262833 is the last number in Winchester's own list. It is not a count of guns made. George Madis records 337 more guns made in 1974.
  • 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.

Winchester rifles usually made without serial numbers

These models usually have no serial number. Their pages explain the exceptions and how their features may help estimate age.

Factory record coverage for the Model 100

The Model 100 is not on the Cody Firearms Records Office’s May 2024 coverage sheet. Ask the office about current availability. The notes and sources on this page explain the other dating information we have.

Which Winchester models can be lettered, and what a letter shows →