Larks
40 Cal
Might have missed it, but how does the lock function when removed from the stock? The potential problems need to be eliminated one at a time. If the cock still doesn't close all the way, check for binding in the bridle and tumbler or lack of lube. If it does close or stops on a partially opened frizzen, then remove the frizzen spring and check that the frizzen moves freely. All one step at a time.
A good question: I thought that I had the lock working well after a number of initial lock building issues that I had posted here about (a couple of years ago now) and, as I mentioned earlier, when I fitted it to the rifle the hammer/cock did initially bind up on the side of the stock slightly so I thought rectifying that would solve the problem.
But sadly that was not the case and I can’t see any other signs inside the lock inlet area where anything might be binding up or touching.
I will certainly be taking it a step at a time, in so far as the first step will be that threefold plan mentioned above..