I use a Burris Euro-Diamond 2.5x10x44mm with the Ballistic Plex retical on my Remington 700xcr in 270wsm. Sighted in dead on at 200yds. with Winchester 150gr. Power Point ammo chronographed 3200fps. out of my gun. It matches up real well. Took this mule deer doe last season at a lasered 298yds. put the 300yd. mark behind the should and touched the trigger. Hit where I was aiming. Was hitting rocks at 500yds. with it.
http://i248.photobucket.com/albums/gg178/700xcr/1209070959-00.jpg