The only danger in the “one bullet per cartridge” agenda is that it might be applied to shotgun shells. For handgun and rifle ammo, no problem, as it doesn’t change anything.
>>For handgun and rifle ammo, no problem, as it doesn’t change anything.<<
A number of producers make multi-bullet cartridges.
Some are buckshot—some are (5) disks—some, like IMI, are two lead cylinders capped with a 95g lead bullet.