The rear of the barrel of a revolver handgun, directly in front of the cylinder has a cone shape. That shape, known as a forcing cone, serves to guide a bullet into the barrel as it is fired.
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A symons cone crusher is an upgrade from a spring cone crusher.
Funnel, ice cream cone, traffic cone.
The forcing cone is the constriction at the end of the chamber in a shotgun barrel that forces the load down from chamber size to the size of your shotgun bore. If you hold the barrel up, point the muzzle toward the light and look through it from the chamber end, the forcing cone will appear as a short, dark ring, dark because the angle of the short forcing cone is severe and is hidden from the light. The distance from the beginning to the end is about 1/4 - 1/2", give or take. Most barrels come from the factory with this abrupt constriction, or forcing cone. When the shotgun is fired, the shot load is immediately FORCED, under tremendous pressure, to squeeze through the abrupt forcing cone to the smaller size of the bore. The shot in the back of the load move first and they have to push the guys in front of them through that abrupt forcing cone. This results in some of the lead shot becoming deformed, making them ballistically unsound and causing them to fly out of the pattern. Lengthening the forcing cone by changing the abrupt angle to a more gentle, gradual constriction results in a new length of around 1 3/4" and a much more gentle angle of constriction. This optimum new length and less severe angle from chamber ID to bore ID allows the shot to make a more gradual transition from chamber to bore size, reducing shot deformation and allowing more of the shot to remain in the pattern.
Federal law requires that the barrel be no less than 18" long as measured from the front of the chamber (at the forcing cone).
Sentence for forcing: Why are you forcing me to do this?
A revolver is louder than a pistol due to the barrel-cylinder gap that is located between the cylinder face and forcing cone of a revolver.
A cone bearer is a cone that bears
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Mount Kenya is neither a composite cone, cinder cone, nor a shield cone. It is a complex stratovolcano made up of layers of lava and ash.
The interception of a plane with a cone parallel to the base of the cone is a circle.
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