The winchester model 670,and magnum models were made from 1967-1973.
your winchester model 70 was made by winchester in 1972.
1965
Your winchester model 9422 magnum 22cal.rifle was made by winchester in 1978.
With the serial number that you have provided,your Winchester model 9422 lever action rifle was made in the year 1980.
With the serial number that you have provided,your Winchester model 9422M was made in the year 1980.
With the serial number you provided,your Winchester model 9422M was made in the year 1977.
With bthe serial number that you have provided,your Winchester model 9422M was made in the year 1975.
If you have a model 70 winchester rifle?then it was made in 1964 with the serial number you provided.
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The Winchester model 670,and 670 Magnum models were only made from 1967-1973.
Go to Proofhouse.com and look at the Winchester sn data.