The barrel lengths in rifles used by the United States did not change between the bolt-action M1903 rifle of World War I and the World War II M1 Garand rifle, because the barrel on the M1903 was still shorter than even the shortened versions of the Model 1891 and Gewehr 98. The U.S. M1 carbine was more of a traditional carbine in that it was significantly shorter and lighter, with a barrel, than the M1 Garand rifle, and that it was intended for rear-area troops who could not be hindered with full-sized rifles but needed something more powerful and accurate than a Model 1911 pistol (although this did not stop soldiers from using them on the front line). Contrary to popular belief, and even what some books claim, in spite of both being designated "M1", the M1 Carbine was "not" a shorter version of the .30-06 M1 Garand, as is typical for most rifles and carbines, but it was a wholly different design, firing a smaller, less-powerful cartridge. The "M1" designates each as the first model in the new U.S. designation system, which no longer used the year of introduction but a sequential series of numbers starting at "1": the M1 "Carbine" and M1 "Rifle".