I'm sure the bullet makers know the level of demand for different size bullets and if the demand were there, in the form of sales, the manufacturers would make the bullets to sell.
There is a article that addresses the surplus ammo coming to the United States. To me this is a sign we need to give ourselves more options. I think even if it was not a issue it would be nice to have more options available.
[FONT=&]Putin shutting down exports of ammunition to the U.S. in response to events taking place in Ukraine. [/FONT]
Is the x39 world coming to an end? | The Bang Switch
*600+BC range Highly desired
* 174gr and up is the area that does best in the .311