My next build is coming together, .300WM. This rig will be capable of 1800yds supersonic, I plan on hanging the steel at 1500. So far, my best scopes have been Leupold vx3s 6.5-20x40, with M1 turrets installed. These have been more than adequate for me at 1k. forgive my ignorance, but what more am I getting if I go with Nightforce, USO, IOR, S&B, Premier Reticles, etc.?