The M16 was not as effective as the SLR, true you could carry more ammo for the M16 but with the SLR using the 7.62 round it was far more useful in getting rounds on target. Sure it was heavier but we were trained to carry it without a sling. We didn't get a lot of re-supply in the field so the ammo had to last and big "brass ups" were frowned upon. Even full auto weapons were preferably used with 3 rounds bursts rather than sustained fire. We never wore helmets in the bush either. just more weight and interfered with hearing and moving quietly through the bush. Sorry, you asked the time and i've just told you how to make a watch.
