I shot the 125 XTP with Blue Dot for a good while. I would have to look for the data, but it worked very well. As a matter of fact, it is what is in my Security-Six that is at the bedside. It was vicious when shot into wet media...
I don't shoot jacket bullets any more as I most just shoot cast...
I too remember reading about the Blue Dot and 125's, but I don't know where or from whom...
Good-luck...BCB