As I have already written, these cartridges are not comparable.

It also has nothing to do with the type of bullet, both can be used for hunting big game with comparable bullets. Both are primarily cartridges for hunting very heavy game species, especially elephants. However, the cartridge 460 Weatherby Magnum is more versatile than a cartridge caliber 510 or in our case caliber 505. The supply of bullets caliber .458 is much greater, which allows to get loads for hunting very different game, which is more practical if you are hunting in Africa with only one weapon. Due to the good external ballistics of the cartridge 460 Weatherby Magnum shooting at longer ranges is also possible. With a cartridge caliber 505 Gibbs you are for this one somewhat limited.