Shooting through brush just isn't an ethical shot to take on an animal that deserves good shot placment. I did have a hunter, this last season that made a 20 yd shot through a small hole in a cedar tree 19 yds from his stand and took a beautiful 4x6 163 incher. Generally it is just not good to shoot through brush though. There are too many variables, and the chance of making a bad shot. I personnally would hate to wound a good buck with a bad shot and have it run off with no bloodtrail and not find it because I decided to take a questionable shot through brush.