Well let's see, they had Dummy, Blanks, Armor Piercing Incendiary, and Armor Piercing Incendiary Tracer. For rebuilding the guns they had High Pressure Test ammunition. There was all sorts of specialty ammo and experimental stuff around when you and I were in, but whether many units got to use or see it is another story.
With the .50 Spotter they had the Spotter Round which consisted of white phosphorus (106mm Recoilless Rifle).
With the .50 Spotter they had the Spotter Round which consisted of white phosphorus (106mm Recoilless Rifle).