A rifle fires a single bullet or round such as a 7.62 or 5.56 millimeter. A shotgun fires a slug such as 12 gram that consists of multiple projectiles. Also a rifles barrel has rifling (or groves) to put spin on the bullet when it is fired.
One goes bang and the other goes BOOM!
A shotgun scope usually has a shorter paralex and heavier cross hairs.
A musket is smooth bored, like a shotgun's bore. A rifle has rifling inside the bore (grooves).
Caliber is the size designation for rifle and handgun bullets. Guage is the size designation for shotgun rounds.
There is no difference between an AR rifle and an AR rifle
One difference is that the inside of a shotgun barrel is smooth and the inside of a rifle barrel is what they call "fluted" which puts rotation on the bullet as it moves though the barrel.
Your Browning light twelve shotgun,not rifle is valued at between 300-550 dollars for a shotgun with between 60%-90% of its original finish remaining,and a good bore.
About .05, obviously.
A sporter air rifle and what?
You will have to define what you mean by carry, and which gun. There is a large difference between carrying a concealed handgun, and carrying a rifle or shotgun when hunting.
It is a shotgun
There is no difference.
A carbine is a type of rifle.