Re: 7wsm and 162 amax
h4831sc 65grs. with fed match mag primer or 65 RL-22 worked for me very well when I shot 162 amaxes. I now use 69grs. of RL-22 with a 168 berger in my new 7wsm match. I haven't played with any other powders because I have alot of RL-22.
"Amazing things can happen when preparation meet opportunity" Richard Schatz
"The will to win, compares little with the will to prepare to win" Donovan Moran