Thanks Fred, interesting. My rifle with the * on the sight shoots dead center with the MKVII ammo. It has no provsion for the cleaning rod so it was upgraded. My other all matching one with the blade offset to the left, shoots 3-4" right of center. It looks like if that blade was moved to the center like the one with the star, it would shoot more center also with the MKVII ammo. That sight has no * so I'm assuming it was not modified and was still sighted in for the heavier slower bullet? Ray