Well, I built three rifles last week and documents the party here. Well, on Wednesday night, I had my first chance to shoot two of them. The third is awaiting installation of the correct LS. In a word... perfect.
First, was the Imbel built on the take-offs from my SAR48. Gas setting at what would be 5 if it were not an Imbel. It never even hiccuped during the whole range session. I fired about 80 rounds through it without a single FTF or FTE. The only glitch was the BHO. It worked fine but when I inserted a new magazine, I couldn't release it. I could still get the bolt forward by pulling back on the charging handle. I am pretty sure it was just new parkerizing causing it to stick. I have since polished it.
Next was the lightweight. That one took a gas setting of 2 and I'll probably be opening up the gas port a bit. There was a single FTE when it was on 3 but other than that, there were no malfunctions through 80 rounds. It did kick a bit, but nothing too abusive.
On each, I did some slow fire, some rapid fire and shooting from a sitting postion. Both shot the main groups at 2" at 50 yards (longest range at the NRA), which is about as good as I could expect from iron sighted battle rifles when shooting without the aid of a bench. Neither required much windage adjustment.
To say the least, I'm pretty happy. Not only do they look like new factory production rifles, but they shoot like it as well.
Thanks to Curt for the help in his garage and to 300whisper, Fenian and 101_proof for all the assistance. I'll be shooting the STG soon and will report back on that as well.