Loading for first time 300 win mag. I'm using a 175 LRX Barnes and CCI LMR primer and Reloder 22 powder coal 3.360. I started at 68.0 grains and worked up in .5 grains to 71.0. The book max is 72.7, which is a compressed load. I understand Norma brass is thicker so I stopped prior to reaching the max load. How much do you generally load down for thicker brass? Thanks
