I have discovered a way to kill the Tiger II at even extreme ranges, and yes from the front. It actually works for all of the heavy German tanks, so possibly it is a bug that covers the entire range, or it is just a good way to get kills. I have to point out that most users will not have a system capable of seeing their target with the same detail that I do, and that the ability to make fine adjustments of the tank barrel is a must.
Because I think this would be exploited on a wide level I will not post film, but I have forwarded film to support.