Re: 6mm Norma BR. or .243 WSSM???
Leave the BR home.
I shoot and hunt a 6br, it is my go to small cal. rifle. I've had a chance to use it on a few deer with shots from 300-760. On a calm day it kicks ass but is still risky out past 500 things change fast. This year I was thinking of taking it to Wyoming on a goat hunt and could have gotten away with it for the most part BUT the longer goats taken (longest 860) would have been safe or worse wounded with the BR. So if you are willing to pass on a Monster if you have to, take it but if the wind shows its ass it's not the cartridge I want to be stuck with. If I could have brought both I would have. (BR and WSM)
At home I love it because I can pick the conditions.
"Fast is fine accurate is final"