If you look in a copy of the Blue Book of Gun Values, you will find 11 pages devoted to about 80 variations of the Model 70, 1964-current mfg. The serialization chart in the back says yours was made in 1965.
What is the age and value of my Winchester model 70 264 win. mag super grade? Serial # 703942
Winchester makes the Model 70
Your winchester model 70 rifle was made by winchester in 1975.
Model 70 winchester serial number 432523 chambered in 416 rigby
1958 model 70 Winchester 3006 good condition
your Winchester model 70 rifle was made in 1941.
Your winchester model 70 is a pre-64 model 70 having been produced by winchester in 1961.
The manufacture date for Winchester Model 70, serial #745481 is 1965.
You have a very early production Winchester model 70,that was produced in 1937.
Your Winchester model 70 rifle was made in 1989 with the serial number you provided.
With the serial number that you supplied,your Winchester model 70 rifle was produced by Winchester in the year 1984.
Your Winchester was manufactured in 1939.