Six complete revolutions in a minute, kind of fun the first time it happened...wheee! Unfortunately, one of our line companies had it happen when a driver had his head up out of the driver's hatch. Messy.
Best thing about those M60A1 AOS upgrades? The new tracks with the removable/replacable track pads. It was kind of neat being able to shoot on the move *from the hip* with the stab turned on, but we had been known to do that even before stabilization came in. They fixed most of the runaway probems when the later M60A1 RISE version came out though.
Did the problems with the M85s ever get worked out?
I recall feed jamming and sight failure.
Only time I shot one the sight didn’t work.
I suppose they used the same belt/ link as the M2.