I use them a lot and love the rings, once I have the reticle leveled. I found that tightening only one screw on each ring just enough to hold the scope but not rotate it works well. Then go on and tighten the others.
I like my rifles to be as light as possible, since we hunt in rough, high, steep country and do a lot of climbing and still hunting, covering a lot more ground on foot than most deer hunters. Weaver mounts are nice and light.
I've never had a properly mounted set of Weaver mounts fail. I buy the older rings whenever I find them, the ones with the big knobs, and they work great as QD mounts. For good repeatability remember to push forward hard on the scope as you mount and re-mount the rings onto the bases.
