I'm a little late to this party but I wanted to mention that this 4" Magnaported 629 was the only .44 magnum that I kept when I sold off a large part of my gun collection about eight years ago. The reason that I kept this particular .44 was that it out shot all of the other .44s that I had including ones with longer barrels. When I bought this gun (used) it would misfire almost every round. It turned out that the previous owner had tried to lighten the trigger pull by bending the main spring. I put in a new mainspring and have not had a single problem since then.
Mark