Action. Single action. Double action

Action

Single action

In a single action revolver, the hammer is manually cocked, usually with the thumb of the firing or supporting hand. This action advances the cylinder to the next round and locks the cylinder in place with the chamber aligned with the barrel. The trigger, when pulled, releases the hammer, which fires the round in the chamber. To fire again, the hammer must be manually cocked again. This is called " single action" because the trigger only performs a single action, of releasing the hammer. Because only a single action is performed and trigger pull is lightened, firing a revolver in this way allows most shooters to achieve greater accuracy.

Double action

Most double action revolvers may be fired in two ways. The first way is exactly the same as a single action revolver; the hammer is cocked, which advances the cylinder counter-clockwise when viewed from the rear, and when the trigger is pulled, this releases the hammer. Double action revolvers also can be fired from a hammer down position, by just pulling the trigger. In this case, the trigger first cocks the hammer (thus advancing the cylinder counterclockwise) and then releases the hammer at the rear of its travel, firing the round in the chamber. Certain revolvers, called double action only, lack the latch that enables the hammer to be locked to the rear, and thus can only be fired in the double action mode. With no way to lock the hammer back, double action only designs tend to have bobbed or spurless hammers, and may even have the hammer completely covered by the revolver's frame. These are generally intended for concealed carry for defensive purposes, where a hammer spur could snag when the revolver is drawn. The potential reduction in accuracy in aimed fire is offset by the increased usability for concealed carry.

⇐ Предыдущая 1 2 3 45