I have often hunted in Central-Asia and since I also hunt regularly in Africa, I also own several big bore rifles.

You can certainly shoot at long range with many calibers, but apart from the poor external ballistics at longer distances of the big bore cartridges, you also have to consider the weapons when hunting under extreme conditions in the high mountains. It's not easy to ride on horses with a very heavy weapon on your back and then to carry it afterwards for hours between 4000m and 5000m, among others things.

A standard medium cartridge like the 275 Rigby, for example, does not have sufficient terminal ballistics to cleanly kill heavy game species, such as an elk for example, at longer distances.

Many cartridges of the magnum class, above all caliber 308 and up, have proven themselves in all these hunts. I don't want to post more because it's not the topic.

The three cartridges quoted are very good cartridges and may have covered the needs of the time. Nowadays, however, we have other standards and also enough well-suited cartridges for almost all hunting situations worldwide. Hunting ethics have also changed, injured game that go away is managed differently than in the past.