Windypants; are you neck turning, reaming or using bushings to get your neck tension? Do you mic. your bullets and check that they are all the same diameter, and weighed for consistent weight? I know that you are using the same brass, how much prep. work have you done to it, flash holes deburred, primer pockets cut to depth, cases cut to length, weighed for consistency. You have nice vertical grouping it looks like in the area of three inches or less. The horizontal isn't bad either right at 6-7 inches. Did you have any breeze between you and the target? I would be completely happy with what you got with your new piece of equipment!