forcing cone

forcing cone

[′fȯrs·iŋ ‚kōn]
(ordnance)
Tapered beginning of the lands at the origin of the rifling of a gun tube; the forcing cone allows the rotating band of the projectile to be gradually engaged by the rifling, thereby centering the projectile in the bore.
Mentioned in ?
References in periodicals archive ?
Perhaps the most basic tuning tool for revolvers is the forcing cone reamer.
Langsford designed a forcing cone in the throat that eased the bullet into the smaller bore without damaging it.
The Beretta A 391 Xtrema2 Hunting Package features backbored barrel, lengthened forcing cone, polished action, trigger job, Angle Port Action Closure, Angle Port Cocking Handle, Xtreme Range Choke and six custom choke tubes.
742-inch backbored barrel combined with a lengthened forcing cone and Invector-Plus choke tubes is optimum for excellent patterning with steel shot.
The UGB25 Xcel features a light alloy receiver, select walnut stock and Optima-Bore Barrel with a lengthened forcing cone for enhanced pattern distribution, reduced felt recoil and shot velocity optimization.
The Maxus Vector-Pro lengthened chamber forcing cone slides the shot column into an overbored, 742-inch barrel topped with Invector-Plus choke tubes that ensure great patterns with large shot.
The front of the cylinder, the forcing cone and the inside of the frame are black with burned powder.
What's more, further sealing of the system was provided by a special cartride, the mouth of which protruded from the face of the cylinder and thus actually entered the forcing cone before firing (the .
Each gun is test fired, and features a Crio barrel with a polished forcing cone to provide consistent patterns while reducing recoil.
Other innovations include a Vector Pro Lengthened Forcing Cone that is 2" longer than other systems, and the Speed Lock Forearm, a lever-operated system that replaces the traditional screw-on magazine cap found on most shotguns.
An even mroe distinctive feature is Casull's hardened steel forcing cone insert, which is threaded into the breech of the barrel and anchored with a set screw.
Basically, this makes the entire barrel one long forcing cone.