So there we have two different opinions on the recoil of a .600. I may add my one: I shot a Heym double rifle (13 1/2 lbs.) with factory loads. The recoil was powerful, but very slow. A push, not a kick. The muzzles climbed to approx. 45 degrees in the sky. This slow recoil didn't hurt me and therefore I found it not to be too unpleasant.