I owned Rmiengton 600 or a Remington 660 many years ago. It was one of the most accurate Rifles that I have owned. It recoil was moderate and not punishing. Maybe because I shoot a lot of magnum rifles I didn't notice the muzzle blast; however, I don't remember it being all that great. At a gun show I let a man talk me into trading it for a Model 70 Winchester .264 Wiin. Mag. A trade I now regret. With Sierra Game King 140grain bullets it shot to 3/4 inch groups. I might still have reloading dies for it.
Clifford L. Hughes