A few years back I took a very nicely built AR-15 to Buck Doyle’s training facility where a group of us shot out to 1,100 yards on steel targets. When I wrote about the event, many commenters called me a liar for suggesting that a .223 Rem./5.56 NATO could shoot that far. Well, with the right bullets (70 grains and up) and the right barrel twist (1:7 is best), the 5.56 is capable of shooting impressive distances, including the elusive 1,000-yard mark.