I have a 4 by 16 rifle scope that does not have a home and I was thinking about getting a rifle for it, I was thinking about setting it up purely for long range and would like to keep the rifle cost around $700. The rifle would be used for hunting deer in VA, and the max range would be around 600 yards. I already have a savage 270 wsm but it is shooting very well as is and I don't want to alter it. Suggestions on caliber and brand of rifle would be helpful.