If you want some REAL answers about what scope to use go to longrangehunting.com
People wont talk to you like you are an idiot there and will help you out with all you want to know. As for my suggestions, leupold mark 4 or nightforce. I have a nightforce 5.5-22x56 on my custom 338 Edge. Havent gotten a change to shoot it yet since its been really cold up here all winter but will get out as soon as spring roles around. I suggest all of you nay sayers check out longrangehunting.com also. Might change your opinion a little bit and might not belittle people when they as a legitamate question.

This past season i shot a buck at 492 yards with a 270 Winchester. All i used was the ballisticplex reticle on my burris scope and a range finder