The FNM is good ball ammunition. None has been available for quite a while.
The Norinco that I used to sell was actually quite accurate. Don't know about the current product, have never used it.
It would be worthwhile testing the Norinco in your M-14 to see how good it is, before relegating it to blasting category.
The Norinco is replaceable at present, the FNM isn't.
I'd try to get the gun set up for the Norinco, seeing as it is available.
I have a lot of IVI brass, and am sure I have some PMP 147 gr. ball bullets somewhere. Was planning on getting loading.