The Model 72A had some re-developed elements, notably a reliable lifter; the past a person was break up. Model 72s had no pull-weight adjustment screw as is discovered within the 69As. It was presented from about 1959-1963. Another defining attribute of your JTSS could it be arrived with a Winchester https://highimpactrounds.com/product/winchester-super-x-20-ga-2-75-in-8-7-8-oz-1210-fps-25-rd-box/