I like this kind. Once my fixed globe sights are centered where I want them, adjust windage with the rear sight. Rifle with no windage adjustment use Kentucky windage. 

  Joe. 

On advice from an older shooter years ago I have adopted his sight adjuster. He uses cast bullets and small brass hammer. It is too easy to have a miss using a brass drift and damage a sight. Many are made of relatively soft steel and easily damaged. Where with a cast bullet all you will damage is the bullet itself. Sometimes with a tight fitting sight in the dovetail I will remove the top section so that there is less chance of doing damage. After all we are just the caretakers of these precious treasures. We need to keep them in as fine condition as possible for future caretakers. Regards, FITZ.