having fired a supersonic BO "outdoors" a few times and fired a 5.56 in similar situations its my impression the BO report is not as loud or painful. I have a set of pro ears gold on my dresser, not sure if I would grab them in an emergency but they are sitting there, as I am quite familiar with the 5.56 report out of doors. About 5 years ago I had to stop shooting feral shoats because it was painful to shoot again and I had 10 more 75 scirroco's left in the magazine and a bunch more piglets in front of me.
