My vote is a Leupold VX3 3.5-10x40 with either the duplex or try the BC reticle. I personally have a Leupold Vari-X III 3.5-10x40 on my Sako m75SS 300WM I bought in 1997, and so does my hunting buddy with the same rifle/scope setup. All my other scopes are two VX3 3.5-10x40, 1 with the BC reticles on a T3 LS 270WSM (wife's rifle), the other with a duplex in gunmetal grey, waiting to get the Varmint reticle placed in for a project rifle. A VX3 4.5-14-40 ADJ OBJ on my Tikka T3 LS 270WSM, and a VX2 4-12x40 ADJ OBJ with LR duplex on my Sako 243, and a Vari-X III 6.5-20x40 safe queen right now I bought off EBAY froma guy in Vancouver,BC.
The Leupold VX2 4-12x40 with LR duplex would be my next suggestion if you want to save some cash. The reticle is similar to the Burris Ballastic Plex. Or try the new Leupold VX-L line of scopes.