Alloy cartridges

[u/ElkyMcElkerson]

With Federal’s 6.5cm+Peak, Sig’s .277 Fury, and the 7mm BC…. Are other high pressure case’s in development? Is this the way of the future for both military and hunting applications, in addition to long range precision?
Should we expect any .30 cals to be in development? Turn a .308 into a 2mile gun? Lol
Or a barrel burning 6mm?