No idea about Leica riflescopes but Zeiss makes excellent scopes, the Conquest line is aexcellent and if money is no object then the higher end models are good investments, but then you are into the Swaro and S&B amongst others, my personal favorite is the S&B of which I own a few, I have never regretted buying them and have never resold one after having it on my rifles that tells you something, I have bought and sold all kinds of other brands but my S&B's have stayed with me. If you are trying out the sport I would also agree with others that the 10X Bushnell is a good buy and you will get most of your money back when and if you decide to upgrade, it's a win win situation.
bigbull