The Model 72A had some re-designed parts, notably a good lifter; the past just one was split. Model 72s had no pull-weight adjustment screw as is uncovered to the 69As. Together with the Superior Wall version, constructed for the more effective cartridges, just the highest on the breech block is https://highimpactrounds.com/product/winchester-ammunition-long-beard-xr-20-gauge-3in-6-1-1-4-oz-shot-lok-lead-1000fps-10-rd-box/