Was sitting and reading yet another book about anti-tank tactics during WW2, when I happened to read more about the various anti-tank rifles. After doing some more research, I was thinking that maybe some calibers could be revived as modern-day long-range anti-personell calibers, for example the old german cartridges P35 and the 7.92mm Patrone 318.
Quick description here http://www.geocities.com/Augusta/8172/panzerfaust6.htm
Quick description here http://www.geocities.com/Augusta/8172/panzerfaust6.htm