We just got back, burned a few hundred and this is the conclusion that I came to. I brought a Rock River Government Model and a Surefire Socom RC2 can of my sons. Remember I'm left handed I took the glasses off for a 20 rd run at the bench, I did feel a bit of gas on the right side of my face and that was it.Its probably those high end bartlein or white oak barrels causing you those problems, Down grade to a Rock River. I do find this topic very interesting.
We are going to go shoot in a bit, both of us will pay better attention today.
So yes, as hard as it is to say, even that fine upper tier Rock River passes a bit of gas.