The problem I see is this; the shooting community has been inundated with “new” cartridge designs since 1906. But there really wasn’t much “new” about them. Add a little case length here, sharpen the angle of the shoulder there. Nothing that actually qualified as a stand alone breakthrough in how we utilize cartridge efficiency.
After all the years of the next best thing we have become skeptical of everything. Riflemen talk about ammo manufactures like they are the government and shout “they are all out to get me”. While Uncle Sam likely is out to get you, Federal and Winchester and Browning are likely not.
With that said if something truly different did come along would we even know it or would we yell at it for not already being a 30-06? What about the legacy cartridges we all know and love today? Did the .270 get the red carpet rolled out for it by the people? What about the .243?
I think we should be cautious of being too cautious. You would likely be surprised if you could have a conversation with some gentlemen back in 1906 about that fangled new cartridge that Springfield is trying to pull the wool over our eyes with.
The day we as westerners tell our weapons and ammunition developers that we are satisfied with the technology of a cartridge developed before we landed on the moon, and we need not go any further in researching performance, is the day we lose the arms race to the comrades and the derelicts.
Food for thought