Feeling unprepped and inadequate

[NorthernRaider]

The SLR is a Riflemans rifle, the M16 is a conscripts rifle.

Exactly NR, I was just going to point that out.
In Vietnam the US used many conscripts who had little training. Their shot to hit ratio was something like 200:1 so the US needed a weapon with very cheap and plentiful ammo, hence the 5.56.

They bloody wish their kill ration was 40,000 to 1