Butch,
Once again, I blame you for an injury I sustained to my shoulder when, after looking at that picture, I took a couple of my own rifles out into the yard and threw rocks at them! Good looker.
I could find no real fault with Remington's Ti actions. In fact, they seemed very well made. I've not seen galling to be any more of an issue with the Ti receivers than with the steel ones.
Browning's Ti actually used a steel insert for the locking lug seats and barrel attachment. The titanium receiver was just a carrier. Stolle (and others)did the same thing with aluminum and Voere used a similar system with a mild steel receiver and an insert for the locking lug seats. GD