I think most scopes (not named Swarovski) will track fine above $1,000. Zero retention is harder to find though. If you want peace of mind on both with a $2,000 budget, and you're an MOA guy, there's this one from EuroOptic. Looks like it's a Like-New demo model they're selling for $275 less than the usual $2150 price. Think what you'll hear around this forum is Nightforce is always good to go, Maven RS1.2 is good stuff, Trijicon Tenmiles are great, SWFA is rock solid (but good luck finding them in stock anywhere), and a few others have done alright in the droptesting.