History has proven time and again that the surest way to guarantee the commercial success of a new centerfire cartridge is to get it adopted as the official U.S. or NATO military service round.
This has been the case with such perennial favorites as the .30-06 Springfield, .45 ACP, 7.62x51mm NATO (.308 Winchester), the 9mm Parabellum (Luger), and most recently, the 5.56x45mm NATO (.223 Remington, in civilian guise).
Next to the omnipresent .22 LR, the .223 Remington is the best-selling small bore cartridge in America today, by a landslide.
So what magic does the .223 Remington possess to garner such national and universal acclaim? One merit has to be its shootability.
As a small caliber round, the .223 is able to blast its lightweight bullets out at decently high velocities with mild, easily managed recoil. Without the specter of shoulder-pounding recoil, and combined with proper training and practice, just about anyone can learn to shoot the cartridge well up close and at a distance.