In the whole19th century, many kinds of double-barreled shotguns appeared in America. Remington 1889, a double-tube sprayer, has nothing to say about its structure. Packed in a folding tube, caliber 12. Its hammer and spring look very retro and smell like old-fashioned hat guns, but in fact it was a hammer with a needle that triggered the primer.
Winchester M 1897 also has a familiar name, trench gun. It is not the first pump-driven shotgun, but it is definitely the most successful one. The standard 1897 five-shot magazine has a shooting skill called Slamfire, which is to hold down the trigger and then violently push the pump forward.
At this time, because the firing pin is in a ready state, the pump will directly hammer the firing pin to the bottom of the bullet to achieve firing, so the pumping weapon can fire at a firing speed comparable to that of the lever type. Winchester 1887 lever shotgun, like the Governor, is the number one winner of the Winchester family and the first truly successful lever shotgun. The magazine capacity of 1887 is 5 rounds, one round can be placed in the bore and the other round can be placed on the magazine board, so the maximum magazine capacity is 7 rounds.
Finally, the semi-automatic sprayer-Browning AUTO5.
This gun is also the work of john moses browning, the great god of firearms, and it is the first successful semi-automatic shotgun in the world. AUTO5 is a shotgun with automatic principle of long recoil.