The current ammo situation perfectly illustrates the problems of over-regulation. In all other forms of investment, people are incentivized to "buy low" and "sell high". Smart investors would engage in a sort of short-sale where they would sell their stockpile at $799, with the intention of buying-back the same amount when the prices returned to the $172 range. Even if prices never reached the previous low, investors could make a substantial profit by selling at $799 and buying-back at $399 at a later date.
When investors are reluctant to sell due to current or threatened legislation, the market is prevented from returning to "normal" levels. The people who claim that the extreme price increases for ammo are the normal result of capitalism are only partially correct. True Capitalism requires a free market. When any good is subject to over-regulation, there is no longer a "free" market. This lack of a free market is what leads to hoarding, price-gouging, and market manipulation.
Supporters of increased regulation need to keep in mind that these principles are true for all goods. It is inconvenient for shooters when this happens in the ammo market. It becomes a crisis for everyone when it happens to food, gas, or medicine.