raven01750
.270 WIN
RippSpeed, The link shows all of the barrels available for the 930. The Slug Barrel is the only barrel that is rifled. The Waterfowl, Turkey and Security Barrels are smooth bore. The Security Barrel is a Cylinder Bore (just a pipe basically) that does not have the ability to add a choke to without modification while the Waterfowl and Turkey barrels come threaded for choke tubes and Modified or Ultimate Full Chokes included from the factory. The ACCU-Choke tubes are flush mount (recessed inside the barrel) while the Turkey Choke is also available in an XX Full (extra extra) which actually extendeds beyond the end of the barrel. Hope that helps.
Paul
Paul