I posted about the same time as you did. I don't know very much about Winchester's, However I was looking thru the "Modern Gun Values" volume that I have, trying to find the answers to my question and found this about yours.
Winchester Model 70 Mannlicher
Same specs as Model 70 (1964-1971) except 243,220,30'06,308. 19" barrel: checkered Mannlicher stock with Monte Carlo Comb, cheekpiece, steel forearmcam introduced 1969; discontinued 1972.
Perf.: $695 Exc.: $595 VGood: $495
Hope this helps.