I have one of these. We just shot it at 300 yards and with GECO ammo, it was darn accurate, first shot from a cold barrel was an X at 3:00! It did have a tendency to string a bit, not really sure if it was the rifle as two newbies were shooting it. Funny story, I bought it from a friend and the FFL guy calls me months later. Doesn't want to talk on the phone but wants to meet me at a gas station. OK guy needs cash, has a deal for me, whats up? Anyway long story is he mis-remembered the rifle and thought he did all the paperwork on a M59/66 WITH a grenade launcher. Was sure he was going to loose everything, Feds were on their way etc. Calmed him down and showed him pics and that everything was above board. I just had to put a Murry's gas diverter valve on mine as it was short stroking. Also a spring firing pin and a trigger job. Still too heavy and I doubt I'm going to stick someone rather than shoot them, but as a 10 shot legal semi-auto with plenty of punch, I'm keeping it.
Dave