A political background to all these studies cannot be denied. Lead-free bullets are increasingly required in many areas of various countries in Europe. Not everyone at beginning liked that, especially not hunters who were satisfied with their classic old bullets for decades. There were initially problems with various lead-free bullets, external ballistic problems in older rifles, but also terminal ballistic so that it became necessary to demonstrate to us through various studies that it is possible to kill game with lead-free bullets. In the meantime, the majority of us believe that, but still not all.