For generations of Canadian shooters, the Cooey Model 840 has been more than just a firearm—it’s a rite of passage. Millions learned to shoot with this humble, utilitarian single-shot .22 rifle. But if you own one, you’ve likely flipped it over, squinted at the tiny serial number stamped into the receiver, and asked: “What does this actually tell me?”
is a common challenge for collectors, as comprehensive factory records for Cooey firearms are generally unavailable. Because the Model 840 was produced during and after the transition when Winchester Cooey Model 840 Serial Number Lookup
Even without a serial number to track its exact "birthday," the Model 840 is highly regarded for its: Breaking the Code: What Your Cooey Model 840
Check proofs and markings:
Sarah rolled her chair over. "What is it?" Post 1: "Serial numbers started with letters in the 70s
Elias climbed the stairs, the shotgun broken down over his shoulder. "I need to run a lookup. Cooeys are tricky. They were the working man’s gun. A lot of them didn't even have serial numbers until the late sixties. If this one has one, and if it’s a low number or a specific prefix, it could tell us exactly when it left the factory in Cobourg, Ontario."
Model Transition: The Model 840 specifically launched in 1967 and was discontinued in 1979 when the Cobourg, Ontario plant closed .