You fail to understand your claim that millions of dollars were spent on R&D developing the M14 as an enhanced battle rifle is inaccurate, and it doesn't matter how hard you try to make it true - it's not ever going to be true.
The EBR program was the most under funded program of its kind, only the M14EBR-RI received proper funding, but even that was a tiny fraction of the millions you say were spent. And what R&D are you referring to?
The EBR program was the most under funded program of its kind, only the M14EBR-RI received proper funding, but even that was a tiny fraction of the millions you say were spent. And what R&D are you referring to?