The Model 72A had some re-developed parts, notably a sound lifter; the preceding one particular was break up. Model 72s experienced no pull-fat adjustment screw as is located to the 69As. 22LR, not for that 69A’s .22 S, L, & LR. I assume that this intended that the chambering and https://highimpactrounds.com/product/winchester-super-x-308-win-180-gr-pp-2620-fps-20-rd-box/