What is a Lengthened Forcing Cone?

The forcing cone is the transition immediately forward of the chamber. 

Typically a shotgun has a very abrupt diameter change from the chamber into the bore.


A lengthened forcing cone is an increased distance of the transition length. 


The lengthened forcing cone provides better downrange performance by diminishing pellet deformation, and is responsible for a reduction in felt recoil.

All SKB shotguns have lengthened forcing cones which provide a much more gentle transition for the shot column.