Magnaport did wonders to my Freedom Arms in 454. Recoil does not bother me but when I first fired it, I was surprised. It was worse than my 3" S&W 500. After porting its a pleasure to shoot.Model 29 S&W 44 Mag 6" MagnaPort with Deer/Bear loads.
If you go with a larger caliber consider Magnaport.