Or carry two custom made leupold, Ziess, etc etc custom made turrets for the ballistics of each rifle.404 fits into a standard 98 Mauser. 375 requires cutting into forward ring or magnum action (= $$$!).
I don't understand why the OP thinks two scopes for two purposes for the same gun is over complicated. 400 gr 404 for heavyweight dangerous game and then bounce down to 325 gr for plains game. Change bullets and loads = different trajectory and impact. Just switch scopes. Both scopes zeroed for specific ammo.
2 rifles. One scope. two tiny turrets changed in seconds.
Of course. I don’t do that. I carried four rifles and 3 scopes on my last trip


