There is a selector switch for the barrel you want. Not both barrels at the same time
Anywhere between $1000 to $3000 depending on if you get rounds with it and if its customed and if u get it shipped.
The Saiga 12 is nothing short of a semi automatic shotgun with the ability to handle up to 10 rounds in a detachable magazine. The shotgun can also be equipped with a barrel magazine cable of handling up to 30 shotgun rounds.
Depends on the shotgun and what you are hunting.
Yes, one gun manufacturer at least built a two barrel derringer that was chambered for 410 rounds. While a 410 is relatively small, technically is is still a shotgun, and in a pistol as small as the derringer, firing it is a wrist-breaker.
Limits the number of rounds which can be loaded. Typically, in US laws for waterfowl hunting, a repeating shotgun is only allowed two rounds in the magazine, and one in the chamber, for a total of three rounds.
One or two, depending on how many barrels the shotgun has.
12 gauge "bean bag" rounds can be fired from any conventional 12 gauge pump shotgun with a cylinder choke barrel. All you need to do is to purchase this type of shotgun a local gunshop or sporting goods retailer.
Get the Alpha Trooper, it has 18 rounds. The Barrel Break only has two rounds and has a slow reloading time.
Put on in the chamber and then top off the magazine.
Impossible to answer without knowing if it is a revolver, semi-auto, shotgun, rifle; caliber, barrel length, number of rounds held, finish, etc..
Yes
Regardless of the prescence of a shell in the chamber. Keep your finger off the trigger and depress the small slide release button to the rear left of the trigger guard if looking from above. This is a button on the bottom of the shotgun which releases the slide. This will alow you to cycle all the rounds out of the tube and eject out the side port without ever pressing the trigger.