All significantly more recoil than any full size 500 smith.
At 4 1/2-lbs with a muzzle brake, and soft rubber grips, I would agree completely. But it's all relative.
My hardest kickers to date were a .500 Maximum shooting 525s at 1,350 and my all-time hardest recoiler, my .50 Alaskan D-Max lobbing 525s at 1,600 fps.