The Model 72A experienced some re-designed elements, notably a good lifter; the earlier just one was break up. Model 72s experienced no pull-bodyweight adjustment screw as is identified to the 69As. It had been provided from about 1959-1963. An additional defining characteristic from the JTSS is it came using a https://highimpactrounds.com/product/aguila-308-win-150-gr-fmjbt-2750-fps-20-rd-box/