Greetings. Finally had the chance to fire a "new to me" S&W 422, 6 inch barrel today. It shot great and was very accurate but I do need to adjust the sights a bit. Can anyone tell me which directions the elevation/windage screws need to be turned to make changes, i.e. which direction to go left/right & up/down? Also, the magazines worked well but they got fairly dirty, are they designed to break down or are they not user serviceable? Thanks in advance for any assistance you can provide.