Remington uses or used before the close hammer forged barrels. Most if not all barrels came out slightly bent and were never stress relieved. Talked with a smith who chucked up a flew in a lathe and said they were way out wack. But, I talked with another smith who said the new production rifle actions are hard to really improve upon i.e. action face and lugs. Said the tolerances were way tighter than say a "B" serial number. I like the old ones myself, but whatever.
As far as model 70s. I think the new Bacos are just better rifles all the way around. Steel floor metal, better bluing, better wood, heck I think they even tapped the actions with better pride. Their barrels break in great with little fouling, I think winchester makes a better rifle.
But with that being said, those mid 80s to early 90s remington bdls and classics are hard to beat. I think you would have to get a really good classic to equal a grade 1 sporter Baco.