I bet it does. I have seen it explained here, I think, that if one just sort of gently roll crimped the end of a shotgun barrel that would cause the shot to disperse and throw a wide pattern. I also believe I read here that the Fox company used longer chokes and that allowed for a gentler constriction providing less pellet deformation and tighter more uniform patterns (theory?). That's what i remember reading. I may be remembering wrong or may be I am just wrong.