I was a medic with 3/187 101st 68-69. Carried a 45 with 4 mags.
Got an M 1 carbine from the ARVN and caried 10 mags for a while. Could always pick up a 16 unfortunately. Had a couple mags and some extra grenades (frag and smoke) in a gas mask bag.
Humping weight will wear you out in jungle heat.
Between the medic bag,and ruck filled with extra canteens (Dumb butts get dehydrated quickly) c -rats, (The canned peaches was my best medicine
socks (People take care of your feet!) and all the other stuff, 60 lbs was not unusual.
Depending on the mission. Maybe a extra radio battery, or a mortar round, or a belt for the 60, a claymore for NDP (night defensive position)
Sorry. Not much help, everybodies war was different, generally my guys carried at least one, most carried 2 bandoleers.
Off topic - but I must say, my guys watched out for me, as much as I watched out for them.
R I P to all we left behind, Doc will never forget you.