And its not just the 'sporting language' we have to contend with. There are certain countries (China, for example) from which arms and ammo cannot be imported from due to other trade regulations, executive agreements, treaties, and embargos (most of which must admittedly go through congress and/or the senate). Note that you can import all the TV's and consumer electronics you want from China, and you can import all the 762x39 you want from Russia (for now), but you cannot import Chinese 762x39.
If tensions with countries such as Russia continue to stay high, I'd expect a push for a Chinese style arms & ammo embargo from an Obama administration.