My biggest beef with American rifle-makers is that they build the big bores too light! If you compare (say) a typical US-manufactured .458 Win. Mag. with a typical British-built .470 NE double, the latter will be almost twice the weight of the former. The felt recoil of the .470 is about half that of the .458 (for me, anyway) - much nicer, IMHO! Sure, carrying the beast is a bit of a pain, but the Brits reckoned that for a dangerous-game gun, you needed the ability to control the recoil and get back on target really fast for a second (or subsequent) shot(s), if necessary. No argument from me there...
One interesting thing, though. If you fire a .45-70 "hot" load (something like the Garrett Hammerheads, for example) through a Marlin lever-action rifle, it's far more comfortable for me, recoil-wise, than a typical .458 Win. Mag. through a modern bolt-action rifle. I can't use weight as a factor here, as the lever-action is often lighter than the bolt-action! Must be something to do with the different stock angle, manner of holding the gun, and weight distribution. Other African shooters have voiced the same opinion, so I don't think that this is just me. Any comment from others who've fired both?