I like vibratite, but the only thing I don’t like about it in a hammer screw application, is if you still plan to adjust that screw long after you applied it, it flakes off of the threads, and who knows where those flakes will end up. Just to see for yourself, use them on your scope ring screws and a week later remove the screws and you’ll see what I mean. At least with blue locktight, used sparingly, there’s no flake.
On marauder guns I learned a trick from Hill Airguns. Take the screw at the bottom of the gun, the one off of the trigger group that holds the end cap on, and drop a short length of weed eater line(.171” in length) into that screw hole. The weed eater line will fall in and rest on the hammer screw threads. Replace the screw you took off, and when you tighten it down the screw will crush that weed eater line against the hammer screw threads. That hammer screw will never move or back off the setting you have it at.
I have yet to really study my Wildcat, but I’m thinking once I find the hammer adjustment setting I like, I’m gonna drop in a length of plastic rod dowel, which I found in the bins of my local Ace Hardware. If I space that rod just right, it will sandwhich itself between the inside of the stock and the face of that hammer screw. It shouldn’t move then, I’m thinking.