I just recently went down this same road, although my search for QD rings was for a Ruger Mark III .22LR pistol. I wanted to retain use of the cool factory fiber optic front sight, but I also wanted to mount a red dot sight on the pistol. I ended up with some QD rings offered by Weaver, the type with thumb screws. I've given it a try, and the pistol held zero just fine after removal & reinstall of the sight & rings as a single unit. A rifle is a different story, though. I did look at some nice lever-type steel QD rings offered by Warne. They were really top-notch, but too heavy for my pistol application. I wouldn't hesitate to try the Warne rings on a rifle. E. Arthur Brown had them in stock...
http://www.eabco.com/Warne01.html You might also consider the see-through type rings...I've had good luck with those as well...