For that type of shooting and with that caliber, the Conquest will probably need a 20 MOA base to get to 1000 becuase it doesn't have that much internal adjustment. Great optics though. The Vortex Viper will get there, I have 2 of them and really like them a lot. For 800 bucks you could almost get two of them. The Sightron SIII are really good but don't expect much on the resale market, of course that means you might get a deal on a used one. Personally I don't know anybody who is using a Nikon or a Bushnell at 1000. There probably are folks out there that do but I don't know anybody who does at the ranges I shoot nor have I heard of anybody at Nationals or in the Tactical matches.