Like mentioned a fixed or low power variable would be the best for the 30/30/ Though you can't go wrong with a 3x9x40 either, it just might look a bit off mounted on top!

I will admit nikon are very bright though I had an aweful expereince with a UCC and question their durability b/c of it. Leupold are over priced but they still make a good product. I have had zero problems with the M series fixed and Vari x III's I have owned or still own. I however do not like their VX III, for its price it is behind in features and to my eye. For the money the Conquest is the better of the 2(constant eye relief, itched reticle, better coating and more precise in tracking to name some reason why I prefer Zeiss). For less money the elite4200 is pretty tough to beat in optics, though shallow in ER. But if you must buy a leupold the VXII is the one to get IMHO. Basically a Vari x III re-wrapped it seems to be to be the best they offer in a variable scope at present. If your looking less than thisI think the elite 3200, FFII, etc offer more for your dollars, though just my opinion. I also hate that leupold has gone away from a 1 piece tube except on the Mark and LPS models. I consider this a poor move on leuys part and don't buy for a minute their arguementof more peices are stronger vs just cheaper to produce.

2 cents worth