FAL as DMR
I have an early Grays Lake DSA SA-58 FAL that repeatedly shoots dime-and-under sized 3 shot groups at 100 meters. With Portuguese surplus ball. And, with other shooters. It has a medium chrome moly Douglas XX barrel from DSA. Several years ago, I sent it back to DSA for a trigger job, which has been satisfactory. Atop the early DSA 4 plate dustcover mount, a Springfield Armory 1st Generation 4x14x56mm Government Model scope is what I use. It's in Leupold QRW leverlock rings, and has never failed to return to zero when re-mounted.
As said above, this rifle will shoot well under 1 MOA with Portuguese surplus ball, and even tighter with my 165 grain Sierra BTSP handloads.
"Rumor" has it, that similar rifles, along with another model of the same basic platform, are in limited usage in certain exotic places as I type this. And have been, for some time.
Yes, a "built" FAL can be used as a DMR. -FNR.
p.s. And, I also own a very fine M1A.