Don't feel bad. I got hit twice during the same session one day with my 7mm. I was just too close to the scope, was creaping up on it and too far forward. The first time I was, "Well, that was dumb, I better move back a little." Then I got bit the second time and the blood really started to pour down my face. I did what any one would do though, and just wiped off the blood and kept shooting. It was a nice half-moon on my eyebrow, much worse than yours. It happens though, I hate to admit it, but if you shoot enough I suspect it'll eventually happen to anyone.