I think there is probably a difference between 125gr. 4831 and 125gr. 3031 along with 100gr. of bullet difference as well, to differenciate between the .505 Barnes and the .460's 'factory' load.

I'm not saying it kicked like the .600 will - of that I have no experience and never will for that matter, but at 8 1/2 pounds for a gun that should weigh, perhaps double that, you might be unpleasantly surprised.

What was the weight of the average .600 Nitro? How many people shoot them without flinching or developing a flinch?