The 670 preceeded the Ranger, and had a standard sporter barrel contour.
The first Ranger series had standard sporter contour (except featherweight contour in the youth versions), blind magazine, and rear sights dovetailed into the barrel.
The second Ranger series had featherweight contour in all non-magnum chamberings, floorplate, and screw on rear sight.
All three had cheap hardwood stocks. All three have shot great for me, and are just as good as any other Model 70 XTR that I have.
