When you use a sniper rifle like it should be used and actually aim using the sights. Seen to be inferior to its counter-part Quick Scoping as the shot isn't determined by luck or a glitch in the game.

Also the only real method of sniping in reality.

Used when using a sniper rifle (preferebly in a fps). Hard scoping is when you aim down your sights for more than about half a second it is known to be 'noob' especially in a 'quick scope' battle