Extended Turkey ChokesManufactured from 1704 heat-treated stainless steel to withstand heavy buffered Turkey Shotshells. These choke tubes produce extra tight patterns with copperplated and buffered lead turkey shotshells. These chokes produce dense patterns and carry a lifetime warranty. The Extended Turkey Chokes extend approximately 1 from the end of the barrel. These chokes have a matte blue finish and should not be used with steel shot. The .680 Extended Turkey Choke Tube produces the most consistent patterns with turkey loads. This tube has a 1.050 parallel section to produce the optimum pattern with your shotgun.