In my experience, the M60 was as good as your troop armorer. While TCing the M901, the M60 was my crew served weapon and I don't recall any issues with reliability. Later, when I was TC of a M113 Dragon wagon, the M2 was my favorite, but my grunts had an M60 for dismount work and it was a keeper, too. OTOH, when I arrived at Ft.Stewart, 24th ID, the M60 I was issued was lucky to run 4 or 5 rounds before a stoppage. Bad maintenance, I think.
God bless the U.S. Cavalry