USA TODAY 
Feb 18, 2013
Gun shops are running low on ammunition from a run by customers fearful of potential gun-control legislation, according to gun retailers and customers.
Prices have more than doubled over past year in some shops, retailers are putting limits on the amount a customer can buy, and some common types of ammunition, such as .22-caliber long rifle shells, are hard to get.
The National Shooting Sports Foundation, which represents ammunition makers, retailers, hunters and sport shooters, attributes what it calls “spot shortages” around the country to rising popularity of sport-shooting and hunting, and to people who are “keeping firearms for personal and home defense.”
The U.S. Fish and Wildlife Service in December reported recently that hunting license sales were up 9% from 2006 to 2011, reversing a 25-year decline. Michael Hampton, Jr., executive director of the National Skeet Shooting Association and the National Sporting Clays Association, says participation in those sports, which includes up to 4 million participants in each sport, is growing 3-5% annually.