Nothing is classic, it's all a question of historical period. Big bore bolt action rifles only came onto the market at the beginning of the 20th century. Previously, big game was shot with double rifles. Nowadays a client is well equipped for big game hunting with a scoped bolt action rifle. This gives him the greatest chance of being successful because he can make a shot even under difficult or non-classic conditions. Anyone who want to hunt with a DR and open sights has often to adapt their hunting to their rifle, but that is a different topic.