H2Andy
Contributor
2. A switch from the original extruded powder used in early develomental lots of M193 Ball ammunition with a colloidal ball powder, made by Olin using WWII surplus cannon powder with an unintended side effect of having about 8 times too much potassium permanganate used as a stabilizer in the original cannon powder.
if i recall correctly, Colt expressely stated that this ammo should not be used on the M-16, but they were ignored
some people even go as far as saying this was "sabotage" on the part of the establishment who were wedded to the M-14. i understand that the closing of the Springfield Armory (whose last production rifle was the M-14 and who lost out to the M-16) and the shift to civilian contractors under the Johnson administration was a result of this debacle.
if that is the case, they have blood on their hands