I use Eotech and Aimpoint due to the short distances I prefer to shoot (100yds or less). For 100-200 Id say a 1-4 magnified optic for combat accuracy. For bench rest Id imagine you'd want as high of a magnification as you could get.
Id like an ACOG would be nice for 100-200 as well. Again speaking about center mass hits on man sized targets. TA01NSN ACOG - Trijicon, Inc.
If interested you can look into a scope w/ bullet drop already figured into the reticle. Most Ive seen are dialed in for 62 grain ammunition.
Budget is also a big factor for me. I don't know about you. If not you're in for some fun. There are a metric crap ton of awesome optics out there.