The 22lr has been through tougher times than this. What could be done to "improve" it?
smaller,faster?--17 mach2, 17 HMR
Centerfire, reloadable and faster---FN 5.7 , 22 hornet
Cheaper----don't know if thats possible.
Jacketed or "super bullets"---would you pay $20 for 20 super improved jacketed rounds? Cant get much more accurate than Tenex, for $15per 50. I doubt the new super bullet will bring down rhino, so where is the advantage to change?
You change the dimensions or ignition system you then have to change millions of rifles to work with the new, improved cartridge.
I think after the nuclear fallout, the surviving rats will hunt the roaches with the 22lr. Everything else will be gone