There is nothing wrong with investment casting as long as the raceways are cleaned up.
Early on (over 10 years ago), MRC had some initial problems along those lines (among other problems). But the owner was really smart and got a LOT of qualified input/help and got the initial bugs ironed out.
While an investment cast rifle doesn't satisfy the purists, it's absolutely rock solid. And I'd bet the action is stronger than any Winchester (and yes it pains me to say that). It certainly is a safer action from any POV while maintaining the M70's fundamentals... and really more like the M98's fundamentals!
But investment cast actions DO tend to be a bit heavier...
“Perfection is Achieved Not When There Is Nothing More to Add, But When There Is Nothing Left to Take Away” Antoine de Saint-Exupery
