The year of manufacture for serial number 801666 is 1965. From the ever popular web site http://armscollectors.com/sn/winlookup.php
The winchester model 670,and magnum models were made from 1967-1973.
your winchester model 70 was made by winchester in 1972.
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.
Would greatly depend on condition.
I have not found that Winchester kept any records of the model 670 and 670 magnum model by serial numbers per year that they made.I can say that the model in question was made during the years 1967-1973.
Proofhouse.com has sn tables.
50-550 USD or so
No way of answering without you providing a serial number to your rifle.
Browning did not make the Model 70, Winchester did. Also, the serial number is not a valid Browning serial number for a 7mm Magnum rifle. Please doublecheck your information.
In excellent condition they can bring $400. email@example.com
With the serial number that you have supplied,your Winchester model 9422M was made in the year 1975.
It will be worth nothing If HELLery Clinton gets in as she is all for gun confiscations (IMHO)
Your Winchester model 94 which was made in 1969 will bring between 175-300 dollars depending on overall condition,and a good bore.
I can say that the Winchester model 670 and 670 magnum version,which you have was made by Winchester from 1967-1973.I am afraid thats all the info that I can find.
Your question has used the serial number of your Winchester,not the Model number.Please include a description of your Winchester along with the model number,and the serial number to get a answer about your Winchester.