What\'s going on? I need some help with this please. I have a 300 RUM in a model 700 SF with a 6.5 to 20 Nikon. I am shooting 165 Gr. Gamekings. During my load testing today with 88 Gr. of Rl-22 I shot 1" horizontal but 3" vertical. When I moved to 89 Gr. I shot 3.5" horizontal and 2.25" Vertical. I trimmed all the cases .010 from max. I deburred the flasholes but I did notice a burr on the outside of the chamfer.