I only meant that the red tipped/base specimens that I have seen were in the form of components.
Since the 300 Savage cases were loaded with many different bullets, powders, and primers for the initial tests I would imagine that most of them were fired and only a few loaded cartridges have survived. They were probably put into any available box with hand written labels since they were intended to be used up almost immediately. I have never seen any boxes.
I’m only guessing at all of this since I don’t really know. I wish that I did. Anyone who has any better or other opinions is encouraged to post them.