by Kyle Mizokami
The rifle uses a unique 5.8-millimeter round developed by China and not used outside of its borders. The justification for the round is a bit of a mystery. It seemingly does not provide any significant improvement over existing NATO and Russian cartridges, both of which have seen extensive research and development and the development of a wide variety of subrounds. One possible explanation for the Chinese round is that it makes the QBZ-95 unable to accept externally sourced ammunition.
Modern warfare has seen breathtaking advances in the last hundred years, as mortal competition between nations spawns successively deadlier weapons. Aircraft, missiles, tanks, submarines and other inventions—many of which did not exist in practical terms in 1914—have quickly earned key positions in the militaries of the world.
http://nationalinterest.org/blog/the-buzz/the-5-most-deadly-guns-modern-war-22465