That questions gonna attract some real BS answers......I've no doubt that sooner or later some clown will tell you the .??? super duper express magnum is far and above any other calibre on earth.....

the truth is no-one has ever done a comparative analysis of every calibre or every bullet etc...... They'll all do the job if you put the right bullet in the right place and none of them will do the job if you get that combination wrong.