Re: I need some help, I have no idea what I am doing.
Leica makes the top quality instruments for surveying that have 0.001m accuracy out to 500m+
Doesnt mean thier scopes are as good a value for money (if you can call $80,000 good value for money).
Vortex Vipers are good, thought PST wont be out for a while. Ive picked up a Bushnell Elite 4200 because of it's features and reputation, though it cost me nearer $1000USD, but you could get something with less zoom, second-focal and non illuminated for much less.
As for mounts, i'm not sure what alot of people would use on a semi auto because we're not allowed them here down under. However i would look at perhaps LaRue QDM's, reason being you can sight in and mount various scopes and sights on your rifle depending on the situation. You could have a decent variable scope for bench work and a fixed-power knockabout for hutning, perhaps with lower power for closer range.