I had a plain-jane Leupold 3-9X40 Vari XIIc on my .375 H&H for years with no issues or no feelings that it wasn't adequate. It rarely came off 3X though so I finally put a Leupy 2.5X ultralight (heavy duplex) on it with talley lows and think it is going to be awesome for what I use that rifle for.

I ain't planning on winning 1000 yard matches with it.