Looks good, only not on the rail. - Weaver Cross Lock Rings

Purchased it to fit my scope on ruger american factory rails. As soon as I tighten the clamp. I found that it didn't fit the rail well.So I dared not use more force. The other day, I finally hit the range. The range master was trying to help. The leg got broken at the time when he tried to tighten the screw a little bit. Neither of us could believe the quality and the fit of these "weaver" name bearing rings...I have to turn to the expensive Leupold rings later, which matched the rail perfectly . This proofs that these rings do have the fitting problems.