Your question cannot be answered without you providing the serial number to your rifle.
your winchester model 100 semi-auto rifle was made by winchester in 1962.
With the serial number that you have supplied,your Winchester model 100 semi-auto rifle in .308 was made in the year 1961,which was the first year of production.
1966
With the serial number that you have provided,your Winchester model 70 rifle in .308 caliber was made in the first part of the year 1982.
1971
With the serial number that you have supplied,your Winchester model 100 was made in the year 1966.
Your winchester model 70 chambered in .308 Win.is a short action.
Your serial number indicates that your Winchester model 88 lever action rifle was made in the year 1959.
Your serial number indicates that your Winchester model 88 was made in the year 1967.
1962
The numbers .308 are the caliber of your rifle,not the model number.Please include the model number and serial number to get the age of your Winchester rifle.
Your serial number indicates that your Winchester model 100 semi-auto rifle was made in the year 1967.