I somehow missed this thread for a while. I apologize for not responding sooner.
I've probably got around a thousand or so rounds through my SA58 carbine. It fed and ejected perfectly from the first round. I shoot mostly Milsurp ammo, but I have fired a fair amount of Black Hills ammo through it as well.
I've kept is strictly iron sights as it's a battle rifle for me. I group around three inches at 100 yards and at 300 yards in the black for minute of bad guy.
I was seriously considering a Springfield M1A1 and chose the FAL instead. It's my experience that the M1A1 is more accurate and while an excellent rifle, I feel the FAL is more rugged. I'm not sure about any MIM parts, but it's an awfully stout firearm. It's incredibly easy to fieldstrip and quick to clean.
I hope this helps.
“If ye love wealth better than liberty, the tranquility of servitude better than the animating contest of freedom, go home from us in peace. We ask not your counsels or arms. Crouch down and lick the hands which feed you. May your chains set lightly upon you, and may posterity forget that ye were our countrymen.” ― Samuel Adams