Focus in by just looking at the vertical displacement. 5-7 only have about 3 bullets height. I would go back and shoot a group of 3 for #5, #6, and #7. When start playing with seating depth. I have never ran the latter on this small of a case capacity, but I would think 0.2 gr increments would let you look at a wider window. Do you have a chronograph available? 200 is better than 100 yds. 300 yds is even better. I would be very interested to see you repeat this exact latter and see if you got similar results. I would bet not. 100 yds is pretty difficult to see the barrel harmonics come into play. Luck, Tim
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