The range is of course extreme, the enemy likely never new they were under aimed fire as the rifle is probably suppressed enough to hide the shot signature from that range.
Except everything outside a range of....oh say 400 yards for a poncey .22.
Shot signature? I'm fairly sure the supersonic crack of a bullet whizzing past their heads would have given them a clue
Maybe they weren't aware they were under fire because the supersonic crack was from a bullet whizzing through their heads?
It took me nine rounds but I took him down with the ninth.
...I should probably insert something here about pommie literacy rates....
400 yards for a 22? You're optimistic ..