My model 70 started out life as an Oberndorf type B sporter with a flat bolt handle.
I believe it was originally a 6.5 x 58. The previous owner stated the ammo was difficult to locate.
So his father had a Winchester barrel in 30/06 installed. Barrel dated 1961.
Sorry to disappoint. But it's the closest I have to a model 70..
Founder Ancient Order of the 1895 Winchester
"Come, shall we go and kill us venison? And yet it irks me the poor dappled fools, Being native burghers of this desert city, Should in their own confines with forked heads Have their round haunches gored."