AZretired
Member
Went though Army BCT in 1972 at Ft Dix and yes we learned close order drill and Manual of Arms with the M16.
I went in in late '75 and we were the last rifle company in the Navy. 16 and 64 count manual at arms along with drill with an '03. They were inoperable.
I will bet that if you handedany Marine from that era an M14 he could still do a fair manual of arms. It wasn't beat into them as much as mistakes PTed out of them
... and some poor recruit that couldn't apply himself. The recruit had two buckets on a shovel. He filled them at one side of the base and he ran to the other side and dumped them. Then he ran back and did it again.