How Widespread was "Gold Ammo"

The_Chieftain: For the US side, HVAP was quite rare. The figures are about half-way down this article, for 76mm/3". http://worldoftanks.com/en/news/21/us-guns-german-armor-part-2/   The saving grace is that German targets requiring the use of HVAP ammo were so rare that the rare rounds tended not to be too ungodly short.