If you have recently purchased an AR-15 or other rifle to add to your collection, you may not know what type of ammunition you can use. .223 seems to be the most common ammo for an AR, but you may have also heard that 5.56 may be used as well. How reliable is that information?
Even if you've been shooting your whole life, there may be some gun-related terms that you're not quite sure about. To help you understand some of the most mixed-up gun terms, we put together aguide to help you become a more informed gun owner.