Felt recoil has a lot to do with how the firearm fits the shooter, form and techniques. The recoil pad, rifle design, weight and stock materials used are also factors.
I have never shot the 6.5 x 284 NORMA but have read they do not have a long barrel life.
If you go to YouTube there are plenty of hunting videos of the 6.5 x 284 NORMA taking game a long ranges. I believe the hunter uses the 6.5 x 284 NORMA on this long range moose shot.