I'm not real impressed with the new 105 H The old ones were super. I did find the 105H was really sensitive to a head and tail wind more so than the old DTAC.115. So if are having a vertical problem and you run out of thing to do that none change it. Change bullets and see if you have the same results, up and down on the powder,in and out on the seating and do your thing with neck tension. I just went through the vertical thing at the national and it is an unseen condition on the left side of the range…….. jim