(Not sure if this would go into Games or here since its a technical question about a game.) I recently picked up Metro 2033 from Steam while on sale, and have found it to be a great game. However I've started to notice an issue in regards to aiming, one that I'm not sure if its a bug or not. An example being in [spoiler]chapter 4, Frontlines[/spoiler] when I attempt to take the stealthy approach and attempt to snipe for head shots however even with a scope the cross hairs seem to snap erratically. I've attempted to line up multiple times for a headshot on an unaware target, just to have the crosshairs snap to either one side of their head or the other making a one hit kill nearly impossible. In short its as if when aiming at range the scope crosshairs are snapping to a grid rather then allowing me to free aim, with all the frustration that entails. While I do have graphics turned up to VHigh but with a 30-50ish FPS range at a lower then max resolution I don't see how it could be an FPS issue.