What kind of spotting scope with reticals are you guys using for beyond 2000 yards? I have a 15x45x60 bushnell with mil-dots. My spotter keeps telling me he is have problems seeing impact on rocks with 338 lapua at 2005 yards. This usually happens when the rocks are wet. I dont want to have to wait to spring to shoot so i thought about a 20x60x80 spotting scope with reticles. Any suggestions? What brand should i buy?