This is true. I am not up to 500, but do have a pretty good sample size. What is weird about bullets and bullet performance is that just when you think you are developing a baseline you get an outlier or two that totally messes with your mind. Which of course leads you to trying new stuff, which probably isn't a bad thing. Having read thousands of words worth of bullet performance theory, I still feel comfortable with the theory that bullets will do some weird shit from time to time. Just like arrows, or probably any other projectile. I have learned to embrace the "what just happened" moments as part of the game.