I've noticed that everything old is new again.
For example, take the .50 Beuowolf, which is fired from AR style rifles. Basically a big hole, but from a modern rifle. How is this different from a big hole from a Marlin lever gun?
Is there really a difference between a .50 AE, fired from a modern IMI Desert Eagle, and a re-built Linebaugh Ruger Bisley, that while utilizing technology from 1907, chucks a 300 grain lino bullet?
My take is that there is no difference at all. Ballistics are ballistics, dead is dead.
But lets take my detractors, put them on an African veldt, replete with cape buffalo, and give them the choice of my Marlin, or the best .223 rifle.
The choice of the rifle makes little difference between men; that conflict is always solved by backbone and resolution, not steel. Survival on the other hand, likes big flying lino bricks.