Depends on the size of the shot, whether the shot is lead, steel or something else, the weight of the load and the gauge of the shell. A lead 1 oz load of #6 birdshot is about 225 pellets.
The number of pellets contained in the shell will depend on the size of the shot.
You can load only one shot at a time.
That depends on the size of the shot in the 3 inch shotgun shell,and the weight of the shot.
Airsoft is legal in many countries. Any gun that shoots plastic pellets are airsoft guns.
Shotguns fire shells with many small pellets- or shot. The shot string is a 3 dimensional view of the shot in flight. When bird hunting with a shotgun, your goal is to have the shot string intersect the bird in flight.
pellets, powder
Yes, it is designed to shoot BB's ,Pellets and darts. The darts and pellets have to be loaded individually for each shot.
It depends on what kind of shot/cartridge you use. Shot, being the pelllets inside the cartridge, come in many different sizes, from 1mm to 9mm.
The Benjamin 132 is an air pistol not a rifle, it uses .22 caliber pellets, not .177 caliber pellets. The 130 series of Benjamin pistols were models: 130 shot .175 Cal BB's 132 shot .22 Cal pellets 137 shot .177 Cal pellets If yours is a rifle then I have NO idea what it shoots
Barrel
Barrel