Wheellocks are kind of unique, but, from what I have heard they are a complicated piece of equipment, as compared to
a flint lock. They are expensive and difficult to make, and have a tendency to get "dirty" rather quickly, which hinders
their operation. It was just another one of those locks that was developed in an effort to make something that was better, however, apparently it did not go over too well since we do not see many of them. If you were thinking of making one for a rifle, it will require a lot of work, and in the end it will get looked at a lot, but will not be extremely useful.....................Don