I think the popularity of that .358 rounds with speeds up close to 3000fps have started this.

Honestly I do not think that we should just make it real easy and go back to shotgun and muzzleloaders.

Most modern muzzleloaders are capable of 300 yard shots and shot guns with rifled barrels and scopes shooting the modern "bullet" type slugs are capable easily out to and beyond 200 yards.

How much further do we need ?

yes some areas you could shoot rifles, but what about in most areas ?

I think its a can of worms/problems