The .223 Scout
Steyr recently announced a .223 Remington (5.56 x 45 mm) version of their Scout Rifle. Because of its diminutive cartridge it is fast becoming known as the "Cub Scout" probably to the chagrin of the marketing folks. It should make a handy rifle for those who's main shooting is at varmints and small game.
Disequilibrium facilitates accommodation.
9mm vs .45 ACP? The answer is .429