Beat 15, took a few retries on a couple of levels. 12 and 14 are ridiculous, both those and 15 required me to adjust my mouse's DPI a couple times until I got comfortable. And then lean close to monitor for 15.
Ridiculous too - they talk about winds and elevation... and yet, you barely get any of that! I had to take a few rounds to learn that the bullet is not being placed at a realistic spot based on winds and distance, which means I had to unlearn most of what I've learned about shooting (which is done correctly in most games, and of course, there is a perfectly accurate representation found IRL). Damn flash games and their lack of bullet physics!
Oh well. Going to keep that tab open, and will go back for the two or three badges I missed with the first play through. I want to see how stressful that bonus round is.