ORIGINAL: bronko22000
DK - I son't know why guys like Pioneer try to condem new cartridges. I bet he owns a .338 and he probably loves it. It IS a great cartridge and like he said, a proven one. But with the newer propellants being designed you can get equal performance from smaller cases than in the past. That, and the firearms/ammo companies do develop new cartridges sometimes jus to boost sales. Look at the 30 T/C. Another similar 308 sized cartridge.
I gotta side with Pioneer on this too. The WSM cartridges are dying rather quickly, just like the WSSMs have. Not enough other manufacturers jumped with them to make the crtrdiges that formidable to keep. Ruger droppd them as did I believe Savage. Winchester isn't likely to offer them upon the return of the Model 70 nor is Browning. That said, it's going to be a handloadrs cartrdige. Not a bad thing for some as you can tweak to suit your needs but for the non-reloader...it could be tough soon to find ammo.
Now...to the question at hand... same gun, same shooter, I'd say the felt recoil goes a bit to the .338 but again it's all subjective and as said, much can be done with the gun to make it more comfortable for the shooter.