Not a lot. Will shoot flatter out to 100 yards I suppose. Plus I just like it. Look at it, all pointy and wicked looking. I believe the .22 LR are typically supersonic too, but come to think of it, it does seem to have more report than a .22LR.
Yes my hands are very clean. I probably just got done washing dishes prior to taking the picture or rinsing dog drool off of them or something.