Re: .308 vs 7mm
I pick the 7Remington Magnum because of its flatter trajectory which equals easier adjustments for longer ranges.
Using my ballistics calculator (Ballistic: Field Tactical Edition) it tells me that
Blackhills 162gr Hornady A-Max
Velocity 2950 FPS
It will only drop 10.8 inches at 300, which to me means that I would not dope from 100-300 yards. = faster shot placements on game that is on the move.
It also has 962ftlbs of engery at 1,000 yards, which is a significant amount with a 162gr bullet on any Deer sized game or less. I would prefer to leave this round as a 750yard hunting round due to the ftlbs being at 1,328 but using this as a target gun out to 1,000 would be easy and reliable.
The .308 is no slouch, theres just a lot better performers out there. The 7RM is probably one of the best all round calibers with great factory ammunition out there.
No safety, know injury, Know safety, no injury.