JUMP IN AMMO SALES: Gun enthusiasts fearful of new weapon controls and alarmed by rumors of government hoarding are buying so many bullets that it's hard for stores nationwide to keep shelves stocked.
REASON FOR THE FRENZY: The run started in November with President Barack Obama's re-election. Then the mass shooting in December of children in Newtown, Conn., led the president to launch an effort to strengthen federal and state gun controls. New York and Connecticut have since toughened gun laws.
HURTS POLICE TOO: Some local law enforcement agencies are also having problems getting ammunition. In Phoenix, the Police Department has stopped providing officers with 100 rounds of ammunition per month for practice.