Just wondering yesterday we went to a public range, first time ever. There were a lot of AR rifles there. There was a guy next lane over that had what appeared to be a large caliber. Every time he fired it you could feel a rush of air movement. Would the flash suppressor cause that? He appeared to be sighting in his red dot. And I am guessing the rounds were pricey. As he fired 5 rounds , and then started shooting a 223.