Re: Gun choice?
7mm Rem. Mag. is a good "killing" round and is good at long range.
A bit of a punch at the receiver end. Very flat shooting. I think it's under rated, but then I'm not the board expert.
If I could have but one round, other than the .22 Long Rifle for survival, for survival, it's be the 7mm Rem. Mag.
I shoot .308 because I grew up deer hunting with it, went through basic training with it in the M-14, and my crew used it in our M-60's on or birds.
I shoot what I know.
Get a 7mm Mag. and a good brake or suppressor.