Also, gotta give Feng props for being able to throw away 'irritation' creases so easily. He's grown a lot since the start of the series. His ability to lay the smooth on Guo Shuang demonstrates that.
@Kisato Not if it severed the carotid artery. Neck wounds tend to either be almost immediately fatal OR respond well to quick action. Also it depends on the bullet. The artist didn't draw a very large exit wound, but many bullets will deform enough to tear a huge hole on exiting.