Re: berger and a 7mm rem mag
Take your pick, I don't think you or the animals will notice a lot of difference.
I used to use the 162 a-max and have had a good run on the animals out to 638 yds. They were easy to get to shoot and performed extremely well, out of about 8 animals only 2 bullets didn't exit.
Unfortunately the 162 a-max is impossible to get in New Zealand at the moment.
I have switched to 168 bergers. They were easy to get to shoot 0.5" group at 100 yds. I haven't shot an animal with them yet but have shot them out to 700 yds with good accuracy.