RE: ? on owning SAND in USD and Hyperinflation hyperinflation in the environment we're talking about will be due to a currency crisis....a failing of faith in the US dollar.
this currency crisis will extend to all debtor nations (Europe, Japan, etc). The worse the country's debt, the worse the crisis will be in that particular country.
The creditor nations exports will be hit by the dropoff in demand from debtor nations imports, but they will stabilize much more quickly (and begin trading much more with other creditor nations), and will actually benefit in the long run by eliminating competition form the debtor nation's exports.
I assume you're talking about gold/silver stocks in the U.S.? If so, you must remember that confidence among debtor nations populace will be extremely poor (especially the U.S.). They may just hunker down, avoiding all "risky" trades, including the general stock market. Gold & silver stocks MAY initially get hit with selling as they could get lumped in with the general stock market as they did in 2008, but this will be quickly overcome buy people looking to park their cash in "things" that keep their value (ie gold & silver bullion). The fact that the gold/silver equities produce these soon-to-be-sought-after things will quickly cause huge demand for them. So any short-term pain will most likely be just that....short-term.
As for US-listed gold/silver stocks, I would much rather own Aussie & Canadian-listed equities. If you can buy them denominated in the host-country currency (ex., converting US dollars to loonies, then buying Canadian-listed equity with those loonies), you will benefit from any further disparity that arises between that currency and the US-dollar.
But I would venture to guess that most VIABLE gold/silver stocks (ie SSL, SAND) will deliver much much better returns than any other investment can in this era or currency debasement chaos. US-denominated or no, the equity returns should be good. But equities purchased in stronger currencies mentioned should do much better.
Of course, nothing is absolute. Good luck to you.