I'm running my 180 load at 2.81" I too played along time trying to get the 180ab to shoot but switching to the magnum primers did it for my gun. I'm sure I could push it over 2800fps easy but I was happy when it started shooting like it is. Also found that the 210np and 200 hot cores like to be seated less than the 2.76" Nosler calls out and have gotten good results with lvl.