its almost cheaper to just buy a scope with turrets and the reticle you want already. example is this. my buddy bought the vx2, 4-12x40. he then wanted target knobs. he ended up paying more for the 4-12, then he would have the 6-18. Not that power has much to do with it, but im sure leupold has a scope that has turrets on the 4.5-14 already, and would probly have the reticle youd like. theres nothing wrong with leupold. people that have them love them, people that have nightforce seem to love them to. some say nightforce glass is not worth the extra 400 bux, i dont really know. the nightforces are just a lot bulkier and heavier in my opinion. if you got the leupold MK4, they are built every bit as tough, and appear to be every bit as clear as a nightforce. every scope on our big game rifles a leupold sits atop, which is upwards of 15 scopes, between my dad and I.