I still use a point of aim of some kind. Usually a target so I can get a group and velocities at the same time. The main thing I do that only a few others have caught onto that I am aware of, is to set the gun on bags so it is on the point of aim, then put a laser sighter in the bore. I then adjust the chronograph screens until the palm of my hand finds the red spot in the middle of both the front and rear screens. That way I don't have to go back and forth between the instrument and the bench several times to get the right alignment.
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