[Dakota Red 1]

Nothing to add but encouragement to keep this thread going. This level of information and expertise is hard to come by. Did everything but hire a skip tracer to track down this old retired guy that could help us maximize the functionality of a bunch of old M60s. I had used that weapon for 20 years and had had an advanced course but he helped us stop the oscillation between the range and MATES.
A conex full of manuals doesn't make you a genius. In this case it took a few beers (found him in a bar), a sharp old mind (18K in new parts helped too) and once again we could hear the rythmic popping of 6 to 9 round bursts and the festive ping of dancing, spring steel links and brass cases. A song that lifts the heart of every infantryman and causes his foe to tear his way into mother earth with his fingernails.