cma3366a, you got it bang on...
Ok, well I went and checked out my Winchester that has a pre 64 action to pick up on what you mentioned but I guess I would need both of them in front of me to see the difference.
I compared it to my Ruger and I find a big difference in fit and finish. They both are Mauser action ( correct ) and the Winchester just slide back and forth with allot less play. Night and day between the two.
Now what is the CRF ? Abbreviation for something?...