Do you think that a new ban on "assault weapons" could lead to the development of new rimfire cartridges?
There are also some extremest who want to completely ban all semi-auto rifles. If that proposal stands any chance of gaining political support it will have to come with a clause that its for centerfire only.
So its conceivable to think that in the near future there could be new federal regulations either limiting cosmetic features of semi-auto rifles or completely banning semi-auto rifles. Its entirely possible though that any such law would apply only to centerfire weapons.
If that happened, do you think the gun industry would respond with the development of new, larger, rimfire cartridges? Or possibly attempt to revive some of the larger obsolete rimfire cartridges from past generations? What do you think that might look like?
I can imagine possibly 2 new rimfire rounds. The smaller one would be designed to replicate the ballistics of the .223/.556 cartridge. Perhaps up-size it just enough to make it suitable for use on white tail deer as a slap in the face to all the people who have bad-mouthed the AR-15 as not being a hunting rifle.
Then the 2nd new cartridge would be a .30 caliber of some kind, designed to fit in with the applications of a .308 or .30-06 and suitable for elk.