Don't think you're slow csquared, I'm wondering the same thing. Or maybe I'm slow too.
An Army Soldier with "Expert Marksman" qualification can hit a silhouette at 300 Meters Open Sites pretty much every time firing an M16. The 30-06 is going to have a much longer maximum effective range (Around 1000 yards), with a good scope, I'd say 400 to 500 meters should not be a problem with your Dad's Remington if properly set up. Any farther than that and there are a lot of things that have to be factored in, you are going to have to have some serious skills and lots of practice to have any high degree of accuracy.My dad just bought a remington 700 30-06 and I was wondering what distance this gun could be used for, provided it had a good scope on it? thanks