"An inspiring little rifle, requiring knowledge of anatomy and exact pointing"

Knowledge of anatomy does not mean "knowing what's the general area you ought to shoot into", it means having an exact and precise knowledge of how the animal is built, and where the various organs are positioned in relation to each other and in relation to the external features. It also requires good 3D mental imaging skills, the aptitude to "see" what's inside the animal at all angles.

How many hunters do actually meet such requirements, especially on African game?