Pre-64 Model 94 receivers were machined from a block of forged steel, with bolt, lifter, lower link, etc likewise machined from steel forgings.
In 1964 - 1970, Winchester cast the receicers from steel, but not solid steel - it was a mixture/process called sintered metal - which is why they needed plating with cast iron to take bluing (If they were alread csat iron, why plate them with the same material ?) .
The Commemoratives had the same receivers, but with (variously) silver, gold, pewter, and black chrome plating ILO cast iron & bluing.
The Model 94 Antique had the same receiver, too, also cast iron plated, but with a faux CCH.
As of 1964, the lifter was changed from forged/solid/machined to one of stamped sheet metal, and hollow roll pins were used in several places within the action ILO the previous solid pins.
In 1970, after years of gunrag complaints, Winchester upgraded the internals somewhat - the stamped lifter was changed to a solid, but cast, lifter (look for the mold seam mark), and replacing some of the hollow roll pins with different pins.
In 1983, with the introduction of the Model 94AE (angle eject), Winchester returned to a forged steel receiver.
This stuff's a matter of record, not conjecture.
Originally Posted by JDMAG
Did any one ever figger out a way to keep theses things from rusting?
Keep the outside waxed/oiled, from Day One.
IMO, To many owners, these are tools, and not treated very gently, instead of something nicer/better.