@Alzheimer @wujeklistonosza : Na angielskiej wiki znajduje się opis, że rana postrzałowa pochodzi najprawdopodobniej od pocisku wystrzelonego z kartacza.
Poza tym według tego opisu jest odwrotnie niż napisaliście ;). Rana wylotowa jest mniejsza niż wejściowa. Czyli wbrew pozorom ten pierwszy obraz, który wstawił @Alzheimer to jednak prawdopodobnie rana wylotowa.

Peter Englund asserted in his essay "On the death of Charles XII and other murders" that the mortal wound sustained by the King, with a smaller exit wound than entry wound, could only be consistent with being hit by a bullet with a speed not exceeding 150 m/s. A bullet fired by a nearby assassin would have hit him with a much higher speed, so the conclusion is that the King was killed by a stray grapeshot from the nearby fortress. "The death, which he had toyed with for so long, finally caught up with him" writes Englund, deciding that the king was not assassinated.

Źródło: https://en.wikipedia.org/wiki/Charles_XII_of_Sweden#Death pokaż całość