Thanos, here's the real consideration. If a law is passed to practically eliminate the supply of ammunition to the public, it will also be illegal for any person to manufacture, for any reason, outside the Federal licensee authority. Just as during Prohibition, when they close a door, they lock it behind them. No do-it-yourself allowed.
Every draft of the various proposed ammo microstamping bills I have read includes a not-to-distant date beyond passage when mere possession of unstamped ammo will be illegal, thus making stockpiling futile. Every time you would break out the cases, powder and presses, you would get that same nagging paranoia that the pot growers and meth freaks experience. Who is going to come for me!!
The Constitution is the only safeguard, set aside the anguish of patriotic resistance, to stop the application of advancing Socialist political infrastructure.
My $.02.
Mac.