I took the SAFER USA class last month. Class size was limited to 6 people. I used my Tikka T3x CTR in .308 with a Vortex Viper HST 6-24x50
The class covered fundamentals, loads, and ballistics. We spent about 3 hours in the class room, the balance on the 600 yard range at ASC.
I'm a member of ASC and used the class to qualify on the 600.
Had you been successful at shooting at great distances before or were you a novice at the time of the class? Since you qualified, I'd presume you were successfully hitting your target on the 600 by the end of the class.
Sorry, missed your reply.
I was semi-capable of shooting out to about 300 yards before this, and had shot to 400 once or twice. I had never gotten any formal instruction on scope dope or calculating mils or MOA before this class, and that was extremely helpful.
By the end of class, i was able to hit clays at 600 yards (after a couple of tries each) and was hitting 9/10 at man-sized steel targets. I fired 83 rounds total. The instructor helped a lot with form and was a wealth of knowledge, and was able to hit out to 600 yards with iron sights (using heavy grain 5.56), which he did a few times.
It's well worth the trip, time, and money.