I have two sets of these Leupold low rings. They mount Weaver V-3 1-3X20 scopes to a Marlin 444P and Model 94 Trapper in 44 Mag. I found them incredible easy to mount and use. Finish is fine and metal is strong, not soft like others. They will not strip. Both scopes sit very low on the rifles, clearing the hammers and spurs, and facilitating an excellent cheek weld and comfortable shooting...no more chin weld for me! Both rifles zeroed well. I don't anticipate any durability issues. After all, they're a Leupold product despite their very reasonable price.
Pros: LOW, easy to mount/use, incredible price
Cons: None
This review was written in the old system and had content requirements that are different than reviews written today.