Well I finally got a chance to take my new Ruger SR 762 out as well as my kit AR 15 and my Arsenal AK47. The .308 is just a boss round. I was shooting 168gr HPBT. The rifle jammed after the 1st 7 or 8 rounds. Then again a few rounds later. I turned up the piston pressure setting from 2 to 3 and it was flawless the rest of the afternoon. Compared to an AR15 you definitely know you have been shooting after awhile. I had a great time. Just used the iron sights..I was not there to zero and sight them in. Just get used to them. I did the same with my new Arsenal. The AR15 kit gun shoots exceptionally well. It has a SPARC II red dot and is zeroed at 100 yards.