I've looked through both of these scopes and know the Bushnell has better, brighter optics. The click adjustments are cleaner and crisper also. The 6500 is the best Bushnell has to offer right now and the Vari x III is mid line for the Leupold. You'll have more power in the 6500 which is always nice to have. I don't remember how much travel as far as elev- and wind that both have but I'm sure it's about 60moa total travel. Both are good scopes, and it really boils down to what your going to do with the scope (hunting, target shooting) and personal preference. This is my 2cents worth. Hope it helps you out.