I am with Curtis on this one. (We took the same class from Jack Brooks) That big lock ended up looking really neat on that skinny gun, I have been very happy with it's performance too. I do prefer Chambers locks overall but Jack had suggested that lock as a match for the original which he had restored. For some reason Curtis, the cock screw that came with my lock is much bigger than the one in your picture. However, looking at pictures of Verner rifles, most of them would be more accurate with some of the locks others have suggested. I really like that Dale Johnson lock and if I was doing most of the other Verner rifles extant, would probably use that one.