I have a Ruger Bisley 45 Colt. The front sight is somewhat shiny. It seems that when I am shooting in the shade I shoot better groups. This morning I was shooting and getting much bigger groups than the last time I was out. This morning I was noticing that the front sight was shiny whereas the last time I was out it was evening and I was in the shade. After shooting several groups and wondering what the heck was going on, I decided to use a black marking pen on the front sight. It seemed to help (groups shrank) but it does still have some shine to it. Does any of this make sense? Have you all found that a shiny front sight makes it harder to shoot small groups? If this is the problem, what should I use to reduce the glare off the front sight? Thanks, Brian C.