I could only find that it was introduced in 1980
50-500 USD or so
50-500 USD; made @ 1980
640k 22 mag was manufactured from 1959-1984.
With the serial number that you have provided,your Winchester model 9422M was made in the year 1980.
50-200 or so
With the serial number that you have provided,your Winchester model 9422 lever action rifle was made in the year 1980.
Depends on who made the 300 Winchester Magnum.
The only dollar coins issued in 1980 were made of cupro-nickel, not silver. They're only worth face value.
The Magnum is no longer made.
Not really.
Unfortunately neither dates are silver. After 1967 the Canadian dollars were made of Nickel. They are worth around 1 - 4 dollars in any condition below MS65