If it's in your budget, I would highly recommend the Nightforce NXS in either the 3.5-15x50 or 5.5-22x50. You will not find a more dependable scope suited for LR. The PHO is basically a leupold scope and they're a good scope, but hard to say what quality specs they are built to. They do not compare to a NF and if you want a BDC turret, you can order one for the NF from one of several companies. Based on reports I've read, my next choice after a NF would probably be a Sightron III. Once again you can order a BDC turret for these scopes as well.
Mark