After further research, my mind is moving more toward the .375's, not because of recoil, but in part because of the high cost of even reloading components for the 416 Rigby. Wow! Factory ammo with premium bullets in creeping up on the cost of the N.E. cartridges, not that I'd be using factory ammo, I've been reloading for 35 years, but still it's something to consider. I too am not sure about the longevity of the new 375 and 416 Ruger cartridges, so it would be the Rigby or the H&H. Is the 375 H&H accepted as a dangerous game cartridge? What about the .458 Win Mag or Lott? I know I'm all over the place with this, but the shared knowledge and opinions are much appreciated. Thanks.