The wife got me a MK2 Ruger HB SS for our anniversary one year. Shot like cr@p for a long time. Constant jams and hangups. Gently stoned/buffed the feedramp and it will run like a champ now. Also removed the triger and did away with the serrations on the face and polished it out. Takedown can be a bear, just have to keep your wits. It is a very accurate pistol if I do my part.