Yes it is BUT what is more amazing is that the level of ignorance of ballistics 101 is so widespread among a group that embraces the latest technology to enhance their shooting ability.Amazing that this is all coming full circle to the first 5 post of this thread.
The OP's question was: "If a person was to take two cartridges that have the same case capacity, but one is considered more efficient than the other. What are the pro's of the more efficient case?"
The answer is, there is no such thing as an efficient case. Equal capacities with the same components produce the same velocity. There is ZERO ballistic lab tested evidence to the contrary. That is physics 101.
As I cited waaay back, the 300 H&H vs 300 WSM Handloader test proved that fact (again).
Short fat cartridges are "cool" but produce no higher velocity with the same components/capacity as their long skinny cousins. (that also feed much better).
Please do the research before pontificating about what is impossible.