Originally Posted by mag318

Deserved or not these revolvers have attained cult like status. Those of us who own and shoot them know why, they are close to being perfect in several ways. That extra 1/2" makes a big difference in both handling and feel of the revolver. If I had to keep just one of my S&W revolver it would be my 66-4. The one thing I prefer about the 66-4 over the earlier variations is the way the rear sight is mated into the frame. My only problem with my 66s is deciding what grips I like best. The wood combats are the most attractive but my Uncle Mikes boot grips are the most comfortable. The 2.5" 66s are good revolvers also and they too are bringing ever increasing ammounts of money.
But if you ever come across a 3" 66, grab it. To many of us they are the finest revolvers S&W ever made.