I have a Tikka in 338 win mag. My problem is that when I go to the range after about 20 shots the rings come loose and I lose my zero. I think the problem is that with the recoil the screws are backing out. It happens with both the rings and the mounts. I think that putting some temporary loc-tite on the screws should remedy the problem but wanted to see if anyone else has had a similar experience/had any other suggestions. Thanks.