I am looking to buy a fairly cheap precision or " sniper " rifle. The calibers i would like are, 300 wsm, 7mm remington mag, and possibly 300 win mag. I would like to be able to shoot at least 800 yards with this rifle, maximum being 1500. Next I would like to put a grey bull precision scope on it, does anyone have any info on these scopes? For this whole project i would like to keep my total under $2000. Any info would be greatly appreciated.