I have a Ruger Mk1 I bought off another member here. I love the way this gun shoots more than any of my other 22's. The problem is that the sights are off. At 50 yards it shoots 16" high and 12" to the right. The groups are tight, just not where I want them. So can a gunsmith move the sights that are dovetailed in and shave the front sight or whatever needs to be done easily? My other thought is to have it drilled and tapped, but Id rather not if I can help it. Any suggestions?