I have no experience with the cartridge 318 Westley Richards and don't want to criticize it. It is certainly a good cartridge, but due to the length of 60mm of it case, the caliber of 330/8,4mm and the load of a bullet weight of 250gr, at first glance I don't see a clear advantage for hunting compared to a cartridge 8x57IS, 8x60S or 8x64S, all cartridges that can be loaded with a 220gr bullet or even heavier. For the latter there are several factory loads, which doesn't seem to be the case for the cartridge 318 Westley Richards.

The cartridge 318 Westley Richards certainly has, as hunting in Africa is concerned, an aura that the others cartridges quoted do not have.

The same applies to the cartridge 333 Jeffery.