This is a good add-on to Jim22′s post below. From legal insurrection.

Reaction to threats by Senator Dianne Feinstein and others to ban certain weapons and severely restrict ownership of guns generally has caused a run on gun stores, as is widely reported.

Less reported is the run on ammunition, leaving ammunition inventoriesdown 93% since election day.

So reports Traction Control blog, Plunge! Ammunition Levels Less Than 10% of Pre-Election Levels:

Ammunition Stock levels have fallen by more than 90% from the pre-Election Day levels. Less than 10% remains available. Available Ammunition links will be updated throughout the day.

Handguns are down by 80%, Long Guns by 63% for an overall 72.2% reduction in firearms inventories.

AR pattern rifles are becoming particularly difficult to source.

In some locations, ammunition is hard to find: