Reviewing the literature for injury to man caused by bullets or fragments reveals that the 80 Joule injury criterion is referenced in nearly every technical report [8,5,6] or textbook [7]. The 80 Joule (precisely 78.453J) or 58 ft-lb criterion as named today was derived from the 8 mkg value first mentioned 1896 by the Prussian artillery lieutenant general Heinrich Wilhelm Rohne in his textbook [1] “Schießlehre für Infanterie unter besonderer Berücksichtigung des Gewehr 88 und der Schießvorschrift für die Infanterie“.
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