Ditto to what Hammer said. While I have not tried as many brands as he has, I have had good luck with some of the ones he mentioned.
Swift
Bushnell, not just the elites either, even down to the Banners, Trophies, and Legends
Leupold
Nikon as well.

I have a Bushnell Banner 6-24x40 with mil-dot reticle on a M70 in 300 win mag that shoots 3 shots in 1/2" with great regularity. It's not quite as bright as more expensive scopes but it shoots so good I hate to mess with it. I have really liked the new Swifts with the sur-lok mechanism lately especially for magnums. Just make your reticle adjustments, tighten the lock knob and it keeps the reticle from shifting under recoil, bumps, etc. So far for me it has worked as advertised, I have one on a 338 win mag and it has performed very well.