Not sure I follow?? I used my load data for the H&H:
270grain bullet, 83grains powder, 2,690fps, 8.5lbs rifle.
Loaddata recoil calculator crunches those numbers at 41.79ft-lbs of measured free recoil, which I rounded to 41.8ft-lbs. Loaddata is a bit more forgiving compared to Charlie Sisk's recoil calculator which crunches the same numbers to 46ft-lbs of measured recoil. The numbers you gave of 85grains and 2,800fps on the Sisk calculator runs 51ft-lbs!!
Point I made was the rifle you remember and described was magnum chambered using a larger magnum load of powder. The 9.3x62 I'm describing is a non-magnum chambering using a smaller non-magnum load of powder more related to the 30-06. I've had such H&H for a number of years, and yes, IMO, the 9.3x62 is a pussycat in comparison because of the smaller case capacity and reduced powder charge.
Best
