Ever consult a dictionary for a description of a firearm? Ever wonder what characteristics a gun must possess to be classified as a "whatever"?
For example, a carbine, by definition, is "a short, light rifle, formerly used by the cavalry." And, the term "assault rifle" is flung at us daily in our news media. Who defines such terms, the BATF? Congress? (God forbid.) The industry? Department of Defense?
Case in point: The Winchester lever action Model 94. With round barrel and bands on the forearm and magazine tube, its a carbine. With octagon barrel and capped forearm, its a rifle, barrel length not even considered. And, further, the carbine is chambered for rifle ammunition, then the U.S. Army adopts a short rifle chambered for a (by definition) pistol cartridge.
And further: The U.S. M1909 machine rifle, and the Browning Automatic Rifle are both considered light machine guns. And the M1917 Browning in .30 caliber, and the M2 .50 caliber, are both heavy machine guns.
Battle rifle vs. Assault rifle. Sub Machine Gun or Machine Pistol? And the British even threw in Machine Carbine.
Hmmmm. Got myself to thinking. Maybe I ought to sit down and publish something defining these arms, even promote myself to "expert" status.
On the other hand, think I'll let confusion continue to reign. Works for the Government.