Talley Lows.
The difference is minimal but to my eyes it is there. Not a problem on game. No problem looking at targets just not able to make out bullet holes at 400 yards in most conditions.
There are two options with the 3-15...Plex and Turrets or Rapid Z and standard turrets.
I still like it better than the leupy just more user friendly IMO. I have sold off all my leupy's and plan on another one or two of these. I hunt eastern woods and western Mountain/sage and this scope will do all that. The field of view on 4.5 on the leupy is a little too tight for 40-50' shots in timber.
Again, just one man's opinion and your experience may be different.
Gary