The Model 72A had some re-built elements, notably a solid lifter; the past a single was break up. Model 72s had no pull-pounds adjustment screw as is located on the 69As. “There's but just one respond to to become designed into the dynamite bomb and that may ideal be produced https://highimpactrounds.com/product/winchester-super-x-22-lr-round-nose-40-gr-1300-fps-100-rd-box/