When I bought my 75B about a month ago, I really enjoyed shooting it, but all my shots seemed to go a little to the left. I'm still a novice shooter, so at the time I just attributed it to my technique and thought it would smooth out as I got more practice. Recently upon closer inspection, I discovered that my rear sight is not perfectly centered. It's positioned just a hair to the right, which would result in shots going a little to the left. Is there any way to adjust my rear sight myself, or should I take it to a gunsmith? And how much do you think a gunsmith would charge? This seems like something simple for someone who has the tools and knowledge to do it, so I wouldn't think it would cost too much.