Don't take my nudge too seriously. I was trying to generate a little interest in this thread. 7.62x51mm is by far my favorite cartridge, and your mod'd FAL brings back memories of all of them I've owned.
I figured the MB would be a bell ringer. That's the second trade off with them.
I love the way an well built FAL feels, and shoots. They just "feel right" if that makes any sense.