My experience here is with a Ruger No. 1 in .416 Rigby and a No. 1 in .458 WM rechambered to .450 Nitro Express, and the latter clearly had more rearward punch than the former. However, I have decided that the No. 1 at least with factory stocks delivers more FELT recoil to my sorry ass than a properly stocked bolt gun. I even find the No. 1 in .375 H&H unpleasant, especially compared to a nice Model 70 Safari in the same caliber.
That said, the most brutal felt recoil I have experienced is shooting 12-gauge 3-inch 1 5/8 ounce turkey loads in an H&R single shot. I'd rather take a shot on the nose from Ali in his prime than do that again.