The good news is that Seneca Armory in VA has just introduced 7.62 NATO with their headstamp “SENECA 7,62X51” and I understand the sole distributor will be Ventura Munitions in NV. The bad news, it is being sold in 250rd boxes for $137.50.
The cases were made in Europe, but I don’t know where—perhaps one of our members knows.
It looks like they will be offering 9x19mm ammunition soon. When I have more on the 9mm I will post it.