For what it's worth, I have the current issue Leupold 1-piece base and low rings on my 336 ... Standard Leupold mount, with the dovetail turn-in front ring, and the windage adjustable rear. Here's a picture ...
It's a hair deceiving in the picture, but with the rear sight set as low as it can go, and blade folded down, the scope's objective bell (32mm objective) clears it by about 1/16" ...