I have 16Gb of Patriot Intel Masters 1600MHz DDR3 that can OC to 2400MHz no issues.
So did you win the lottery? Hard to say, since you are basically doing better than average as far as OC goes. Just how much better is the real question since your ram is a 33% OC, yet mine is a full 50%.
Problem with p95, even though it uses ram to some degree in large and blend, that's only to some degree. P95 (small fft) is best for cpu heat loads, and thats about it.
For really putting ram through the works, use Asus RealBench or memtest86. Your OC can be totally stable 99% of the time, but it's that 1% you'll always seem to find when 2hrs deep in a game with a group doin a boss, and you haven't saved.